Sesotho verbs are words in the language that signify the action or state of a substantive, and are brought into agreement with it using the subjectival concord.
This definition excludes imperatives and infinitives, which are respectively interjectives and class 14 nouns.
In the Bantu languages, verbs often form the centre of a complex web of regular derivational patterns, and words/roots belonging to many parts of speech may be directly or indirectly derived from them.
Not only may new verbs be derived using a large number of derivational suffixes, nouns (and, iteratively, the other parts of speech that derive from them), some imperative interjectives and, to a lesser extent, ideophones may be formed by simple morphological devices.
Varieties
Verb stems may be divided into four varieties:
Regular stems beginning with a consonant and ending in a vowel
Monosyllabic verbs
Vowel verb stems begin with a vowel
Derived verbs constructed from other verbs, noun roots, adjectival roots, and ideophones by suffixes.
Regular verbs are those beginning with a consonant and ending in the vowel .
The final  may change into every vowel except the near-close back vowel () through inflexion or derivation.
The verb root is the atomic part of the verb, which does not change (save for some purely phonetic changes) and Bantu languages share numerous similar verb roots (with predictable sound changes between languages).
Stem  see, from root , also existing as isiZulu -bon-, Swahili -on-, Tshivenda -vhon-, Chishona -von-, Chilamba -won- etc.
Proto-Bantu *-bon-
Monosyllabic stems may be classified into several categories:
The i-stems have a typical  in derivatives, and  in the passive
come ⇒ Perfect , Causative , Passive
go ⇒ Perfect , Causative , Passive
draw water ⇒ Perfect , Causative , Passive
The e-stemsSimple phonotactic explanations may make these apparent irregularities more understandable.
<br /> Almost all the non-velar e-stems are palatal or postalveolar in nature.
This may be due to an original palatal glide being "absorbed" into the original consonant of the verbs (the alveolar  also has similar origins).
In Sesotho, the palatal  may not be followed by the vowels  or  and these become weakened to  and .
The original passive suffix (still used in Setswana and many Northern Sotho languages) was , and so the suffixes are weakened to ,  and .
<br /> Apparently the velar e-stems use the modern  passive instead, and due to phonotactic restrictions occasionally applied on the labial approximant , similar to those on the palatal, together with the fact that labialized consonants may not be followed by back vowels, the suffixes are weakened to ,  and .
have a typical near-close front  in their derivatives
burn ⇒ Perfect , Causative , Passive
eat ⇒ Perfect , Causative , Passive
The "velar" e-stems have labialized onsets, and have similar forms to other e-stems but have a near-close back vowel  in the passive
drink ⇒ Perfect , Causative , Passive
There are three defective stems, ending in a vowel other than .
The first two of these verbs are very common among the Bantu languagesThe first two verbs, together with the copulative verb  (indicating possession, with a conjunctive import), are used in many Bantu languages in generally restricted circumstances.
<br /> There exists certain "defective" verbs across most Bantu languages: Proto-Bantu *-di (Sesotho participial copulative ), *-ti (Sesotho ), and *-na (Sesotho ).
Additionally, a common variant of *-ti — *-tio — appears as Sesotho  — an irregular palatalization (when an alveolarization would have been expected) possibly due to the verb being borrowed from some Nguni language (it does not exist in most other Sotho–Tswana languages).
<br /> These are distinguished from other verbs in that they are normally not used with many of the affixes in the verbal complex.
For example, though they are all transitive and are therefore used with objects, they never take objectival concords (in Sesotho and many other languages,  may take an objectival concord when used with ideophones).
Additionally, except for Sesotho  and , they may not be used as infinitives.
<br /> Even though they have these peculiarities and, except for , they do not end with the typical vowel, Bantuists consider them verbs because they may be used with subjectival concords.
<br /> The highly irregular passive of  may be due to Nguni -thiwa (most other Sotho–Tswana languages use -riwa instead).
say ⇒ Perfect , No causative, Passive
be; very restricted in use (only used in the participial sub-mood of certain copulatives)
say so ⇒ Perfect  / , No causative, No passive
Vowel verb stems are conjugated as regular verbs but are put into a separate class due to being uncommon in Bantu languages (and, in some languages but not in Sesotho, causing changes to concords and other formatives prefixed to them).The specific label comes from early descriptions of isiZulu grammar, where it was discovered that, apart from simply looking different from other verbs, vowel verbs are also conjugated slightly differently from normal verbs under certain situations, and many of them have alternative (and, at least in modern popular urban isiZulu, more common) forms with the initial vowel deleted.
Though isiZulu has five vowel phonemes (plus two allophones), vowel verbs in that language may only begin with the vowels , , and  (written 'a', 'o', and 'e' respectively in its orthography).
There is no similar restriction in Sesotho.
Class 1 and 5 nouns derived from these verbs do not cause any velarization to the prefix.
The Proto-Bantu reconstructions of many of these verbs suggests that they originally began with *g (or sometimes *j), which "protected" the vowel.
avoid (as a taboo)
travel
hear, sense
construct
strike, punish
Tones
Verbs fall into only two categories when it comes to their tones: L verbs and H verbs.
The difference lies in whether the "underlying tone" of the verb's first syllable is high or null (under-specified).
Thus, all verbs of a certain length in the same tonal category are pronounced with similar tonal patterns under the same grammatical circumstances.
What the verbal tone system lacks in variety, however, it more than makes up for in complexity.
The tones of the syllables of the verbs regularly change under varying grammatical environments, with the high tones being manipulated by "tonal rules", and the tones associated with certain syllables being changed by numerous "tonal melodies."
Verbal derivatives
Various derivatives may (recursively) be formed from verbs by means of several suffixes (called "extensions").
Each derived verb is as much an authentic verb as the original.
In the following sections, "polysyllabic" generally means "of more than two syllables."
Verbs are derived primarily through suffixes, some of which are no longer productive ("dead").
Verb derivations using the root {{H:title|[ǃɛtʼ]|'''-qet-'''|dotted=no}}<ref name="vb_deriv_trad">The traditional verb root used to demonstrate these derivations (and form their traditional names; by using the class 5 noun prefix {{H:title|[lɪ]|''le-''|dotted=no}} and changing the final vowel to {{H:title|[i]|''-i''|dotted=no}}) is {{H:title|[et͡sʼ]|''-ets-''|dotted=no}} (do, act, make).
The problem with this root is that the {{H:title|/t͡sʼ/|''ts''|dotted=no}} consonant tends to greatly complicate the forms of the derivatives (due to [[Sesotho phonology#pp alveolarization|alveolarization]]), and it has been felt wise in this table to use a verb root with more neutral sounds.
Note that the {{H:title|ɛ|''e''|dotted=no}} in {{H:title|[ǃɛtʼɑ]|'''-qet-'''|dotted=no}} regularly undergoes [[Sesotho phonology#pp vowel raising|vowel raising]] when followed by certain vowels and consonants, but this is a simpler and more predictable phenomenon than the various complications brought on by the {{H:title|/t͡sʼ/|''ts''|dotted=no}} consonant.
<br /> Compare this with the situation in [[Arabic language|Arabic]] where the verb '''فَعَلَ''' (Faʿala "he did") traditionally used to indicated the various verb forms often confuses non-native learners due to the [[Ayin|ʿAin]] '''ع''' sound being confused with that of the [[Hamza]] '''ء''' that appears in some forms (such as the causative stem IV '''أَفْعَلََ''' 'Afʿala).
</ref>
---- The passive indicates that the subject is acted upon by the agent, just like the "passive voice" in English.
The agent is indicated by the copulative prefix  although passives may also be used idiomatically without an agent.
The suffix may be either  (Proto-Bantu *-u-) (short passive) or  (long passive).
The following rules are applied to form the passive:
The long passive is formed simply by changing the final  to
mould ⇒  be moulded
Many verbs accept the short passive suffix by simply becoming labialized
do ⇒  be done
Palatalization occurs where necessary (when the final consonant is , , , or )
win ⇒  /  be won
Velarization occurs where necessary (when the final consonant is  or )
move slightly ⇒  be moved slightly
Monosyllabic e-stems suffix  (except the velar e-stems ending in , which suffix ) and i-stems suffix
give ⇒  be given
Verbs ending in  replace it with
select, indicate ⇒  be selected
Verbs ending in  replace it with
judge, condemn ⇒  be judged
It is very rare to have other verbs derived from the passive through suffixes.
This suffix has the effect of decreasing the valency of the verb and giving it an agentive import.
In the most formal standard language, the perfect of the passive is generally formed by inserting  before the final vowel of the perfect form (that is, the passive suffix has to come after the perfect suffix).
In non-standard common speech, however, the perfect of the passive may alternatively be formed by using the long passive with the final vowel changed to the final vowel (usually ) of the verb's perfect.
Additionally, in non-standard speech the perfect passive of verbs ending in a  that changes to  in the passive replace it with .
The passive is used more commonly in Sesotho than the English "passive voice."
Consider the following example:
Sesotho (passive) , English (active) "Who will feed the dog?"
The alternatives are more complex in their respective languages:
Sesotho (normal) , English (passive) "The dog will be fed by whom?"
Passive verbs are rare in the Niger–Congo family outside the Bantu sub-branch.
----
The neutro-active indicates an intransitive state without reference to the agent determining the condition.
It can be approximated in English by using "get" or "become."
It is, however, distinct from the passive.
It indicates a current state of being done or being doable.
The suffix is .
Only transitive verbs may take this suffix.
accomplish ⇒;  (currently) get finished, take place
do ⇒;  be done
This suffix has the effect of making the valency of the verb 0, even if the original verb had two objects.
The resultant verb is completely intransitive and cannot assume any objects even if they are prefixed.
The perfect of verbs ending with this suffix is achieved by changing the final  to .
This extension is quite rare in the Bantu language family as a whole.
----
The neutro-passive indicates an intransitive state without reference to the agent determining the condition.
It can be approximated in English by the suffix "-able."
It is, however, distinct from the passive.
It indicates that the verb has the potential of being doable, but not necessarily currently.
The suffix is  (Proto-Bantu *-ik-,Proto-Bantu also had an allomorphic non-productive suffix (called the "impositive"), which, instead of meaning "to be put in a state" (the meaning of the neutro-passive), actually meant "to put in a state."
As with the productive suffix, the vowel has undergone an irregular vowel shift in Sesotho, but unlike the productive suffix the  reflex from Proto-Bantu *k is sometimes weakened (through voicing) and elided, thus resulting in verbs that end with  : Proto-Bantu *-janik- spread to dry out in the sun ⇒; Sesotho  : Proto-Bantu *-jambik- cook ⇒; Sesotho  (slightly archaic) with an irregular vowel shift).
Only transitive vers may take this suffix.
disperse ⇒;  be (potentially) spillable, become scattered
do ⇒;  be doable, become done
This suffix has the effect of making the valency of the verb 0, even if the original verb had two objects.
The resultant verb is completely intransitive and cannot assume any objects even if they are prefixed.
The past tense of verbs ending with this suffix is formed in the general way by replacing the final vowel with .
----
The applied indicates an action applied on behalf of or with regard to some object.
It can be approximated in English by prepositions and prepositional phrases such as "for" and "towards."
It is possible that in pre-Proto-Bantu the various meanings of this suffix where indicated by several different forms that eventually merged and became the single *-id-.
The suffix is  (Proto-Bantu *-id-, with an irregular vowel shiftThis "irregular" shift, which causes the applied suffix to look like it came from Proto-Bantu *-ed- instead of *-id-, is found in many other Bantu languages.).
Sometimes this extension is doubled to , causing the verb to look like a perfective form but with an applied meaning.
The following rules apply when forming the applied:
Usually one simply suffixes
to search for ⇒  search on behalf of
Verbs ending in  replace it with
walk ⇒  walk on behalf of, towards
Verbs ending in  preceded by an open vowel (, , or ) elide the middle  and contract to
write ⇒  write to/for
Verbs ending in  preceded by a closed vowel (, , , or ) don't contract
grow ⇒  grow for/towards
Polysyllabic verbs ending in ,  (most), , , and  cause the  to alveolarize to
do ⇒  do for
Polysyllabic causative verbs ending in  replace it with , reversing an original alveolarizationThis may, as usual, be better explained by looking to the original Proto-Bantu morphology.
The Proto-Bantu short causative *-î- alveolarizes the Sesotho  to .
Additionally, there were, and (in almost all Bantu languages) still are, fairly strong restrictions on the ordering of the verbal extensions — the most basic restriction being that the short passive and the short causative *-û- always follow the other extensions (isiXhosa is an example of a language that allows other extensions to follow the passive).
<p></p> So with these facts in mind, this particular morphological rule for forming the applied may be explained by simply saying that the short passive that alveolarized the original  is removed from its current position (thus reversing the alveolarization) and placed after the applied extension to conform to the rules about extension ordering (with the added side-effect that the  in the applied extension is now alveolarized).
work ⇒;  work for
The applied increases the valency of verbs; intransitive verbs may become transitive in the applied, and transitive verbs may become doubly transitive
live ⇒;  live for
say something ⇒;  tell someone something (two objects)
The past tense of verbs ending with this suffix changes the  to .
----
The causative indicates an action caused to happen by some agent.
It can be approximated in English by using "cause to."
The suffix is  (Proto-Bantu long causative *-îc- + short causative *-î- ⇒ *-îcî-).
The following rules apply when forming the causative.
Most complications are caused by the original Proto-Bantu "short causative" *-î- being absorbed into the preceding consonant (Sesotho does not allow palatal glides):
Usually one simply suffixes
do ⇒  cause to do
Verbs ending in  replace it with
walk ⇒  cause to walk
Some verbs ending in a , which is an alveolarization of an original , revert the alveolarization, ending in
work ⇒  use
Monosyllabic e-stems suffix  and i-stems suffix
drink ⇒  cause to drink
Verbs ending in  and disyllabic verbs ending in  contract and cause nasalization resulting in
see ⇒  show
The original Proto-Bantu short causative suffix causes some verbs ending in  and  to change to  and  respectively (in common non-standard speech all verbs ending in  are changed to )
meet ⇒  join
Most verbs ending in  and  change the  to .
This is also due to the Proto-Bantu short causative (Proto-Bantu *-k- + short causative *-î- + final *-a ⇒ *-kîa, which appears as Sesotho )
go to graze ⇒  herd
Often the causative verb has a meaning implying "help to do"
build ⇒;  help to build ⇒;  help each other to build ⇒;  neighbour (since traditionally neighbouring houses would share a wall and yard, which the owners would build together)
The causative may increase the valency of verbs
know something ⇒;  cause someone to know something
Usually the perfect is formed by further suffixing , but if the derivation alveolarized an original final  to  then the alveolarization is reversed, resulting in final .
If the suffix changed final  to  then the perfect is formed by replacing this final syllable with .
----
The intensive indicates intensity or quickness of action.
The suffix is simply a doubling of the causative suffix () and the first syllable therefore follows similar phonetic rules as the causative.
Sometimes, the suffix  is used instead, resulting in causative and intensive verbs looking the same.
look for ⇒;  investigate, search thoroughly
do ⇒;  do intensely
----
The perfective indicates an action that has been carried out to completion or perfection.
The suffix is simply a doubling of the applied suffix ().
It must therefore not be confused with the applied form of verbs ending in .
step on ⇒;  oppress, coerce
do ⇒;  do thoroughly
A further intensification of meaning is achieved with the suffixes  ( + Proto-Bantu *-îa) and  ( + Proto-Bantu *-îa), a compounding of intensive and perfective suffixes.
These verbs tend to denote meanings indicating specific purpose, and it is not unlikely that they are in fact intensifications of the applied suffix  instead (though the verb's valency is not increased).
shout ⇒;  call out, scream
obscure, screen ⇒;  protect
Though one might expect this suffix to form the perfect by replacing the  with , it often appears as  instead, even in standard speech.
----
The reciprocal denotes a reciprocated action.
It is formed by suffixing  (Proto-Bantu *-an-Many researchers believe that this suffix might be from an earlier preposition *na (cf. the conjunctive clitic *na-, corresponding to the Sesotho proclitic ), which became grammaticalised and attached to the verb.
That is, Verb-a na X ("Verb along with X") became Verb-ana X in pre-Proto-Bantu (with the same meaning) and this was eventually used as a productive suffix.).
It is usually used with plural subjects and plural concords, and has the effect of decreasing the valency.
However, an object (the second subject) as well as a singular subject may still be used if the object is prefixed with the conjunctive enclitic  (and, with); that is, they have a conjunctive import
speak ⇒;  cause to speak ⇒;  they communicate,  I communicate with him
do ⇒;  do (to) each another
Often this suffix is used when there is no chance that two subjects are involved in reciprocating the action.
In this case it simply converts the verb from transitive to conjunctive import, with a minor modification of meaning (the action is slightly extended in time, or indicates a habit of the actor)
look at, search for ⇒;  /  I am looking for them (class 8 or 10 object)
The perfect is usually formed by changing the final vowel to , though if the original verb was monosyllabic then the perfect replaces the  with
----
The associative indicates that two or more subjects are associated together in the action of the verb.
It is formed by suffixing .
This derivative formation is not regularly used with most verbs.
attach, hook ⇒;  be attached to each other, telecommunicate with one another
do ⇒; ( (be done together)
The perfect simply replaces the final vowel with
----
The reversive (or inversive) indicates an entire reversal of an action.
It is formed by suffixing  (Proto-Bantu *-udud-) although several other dead formations exist, showing two sets of derivations into intransitive, transitive, and causative.
These extensions, or at least their short forms as found in other languages (Proto-Bantu intransitive *-uk- and transitive *-ud-), are sometimes called the "separative" instead.
'''Dead reversive forms'''
do ⇒;  undo
Though the theory (and standard grammar) would dictate that this suffix forms its perfect by changing to , it often appears as  instead, even in standard speech.
----
The augmentative is a largely dead formation signifying an augmentation or extension of a verb.
It is indicated by suffixes similar to the dead full formation of the reversive (, , and ).
set apart ⇒;  be distinct
----
The extensive indicates performing the action repeatedly or extensively.
It is formed with the suffix Comparison with other languages shows that this is actually irregular as one would expect it to appear as  in Sesotho.
but is limited in scope.
It is primarily used with verbs signify discrete actions, causing them to be continuous or habitual.
It is also sometimes heard doubled as , with the same meaning.
jump ⇒;  prance about
do ⇒;  do repeatedly
The perfect of this extension simply suffixes .
----
The diminutive indicates an action done "a little."
It is indicated by reduplication,The verb thus formed is a full, independent verb, rather than a mere repeating of the verb's syllables.
In particular, the derived verb belongs to the same tonal class as the original, with the underlying tone on the first syllable of the stem not copied when the syllable is copied.
This is overwhelmingly the case in the Bantu languages, although there is one notable exception, viz.
Chichewa.
the form being determined by the length of the verb:
Disyllabic verbs repeat the entire stem
do ⇒  do slightly
Monosyllabic verbs are repeated with the near-close front vowel () between the stems.The verb thus formed is a full, independent verb, rather than  This form is almost never used
eat ⇒  eat a little
Polysyllabic verbs duplicate the first two syllables of the stem
find ⇒  find somewhat
Note that this derivation pattern, like all other uses of reduplication in Bantu languages, is also sometimes used to indicate an intensification and/or repetition of an action—in these cases the actual meaning must be determined from context.
After the reduplication, the new verb may only have an underlying high tone on the first syllable (that is, only the phones of the first syllable are repeated, but not its tone).
----
The positional is a dead stativeThese "stative" verbs in Sesotho all have a strong inceptive feel to them.
That is, instead of simply meaning "to be x", they actually mean "to become x", with the actual stative "to be x" meaning achieved by using the "present stative" tense (which is formed in exactly the same manner as the perfect for non-stative verbs).
The "stative" label comes from the fact that in many other Bantu languages these verbs do actually indicate present states, not a continuous inceptive event.
formation found in many verbs, mostly indicating bodily positions.
It is marked by the suffix  (Proto-Bantu *-am-).
Originally, this suffix was not used to derive new meanings as such, but rather to emphasise the stative positional nature of the verb.
The perfect of these verbs changes the  to  and indicates a continuous, current action instead of a completed one.
Past tense may be indicated by multi-verbal conjugation.
lie face downwards ⇒;  He is lying face down,  He did assume a lying position,  He was lying
----
The stative extensive is a dead stative formation found in a few miscellaneous verbs, united by the fact that they all indicate states.
It is marked by the suffix  (Proto-Bantu *-ad-).
Originally, this suffix was not used to derive new meanings as such, but rather to emphasise the stative nature of the verb.
The perfect of these verbs changes the  to  and indicates a continuous, current action instead of a completed one.
Past tense may be indicated by multi-verbal conjugation.
wonder ⇒;  They are in awe,  They did become amazed,  They were amazed
----
The contactive is a dead formation found in a few verbs, all indicating touch or contact of some sort.
It is marked by the suffix  (Proto-Bantu *-at-).
Originally, this suffix was not used to derive new meanings as such, but rather to emphasise or intensify the contactive nature of the verb.
The perfect of these verbs changes the  to  and indicates a continuous, current action instead of a completed one.
Past tense may be indicated by multi-verbal conjugation.
wear ⇒;  We are clothed,  We did become dressed,  We were dressed
Compounding of extensions
A verb may assume more than one extension, giving it a correspondingly more complex meaning.
watch X ⇒; causative  cause Y to watch X ⇒; causative-applied  cause Y to watch X on behalf of Z ⇒; causative-applied-reciprocal  cause Y to watch X on behalf of each other
Though it may appear that the possibilities are endless, the truth is that the depth is limited by various factors.
Apart from the obvious constraints of semantics (whether a complex meaning actually makes any sense and serves any possible purpose) and markedness (how strange and complex the verb sounds to the native speaker), there are also restrictions on the order of the extensions.
If an extension increases the valency of a verb, any objects of the original verb are demoted and the new object is made principal.
I watch the fields ⇒;  I cause the children to watch the fields ⇒;  I cause the children to watch the fields on behalf of the old woman (highly marked)
If an objectival concord is used instead of an object, the concord agrees with what would have been the principal object.
Additionally, if the original object was also only indicated by an objectival concord, then it becomes demoted to an absolute pronoun (Sesotho verbs may only have one objectival concord).
I watch them ( fields) ⇒;  I cause them ( children) to watch them () ⇒;  I cause them () to watch them () on behalf of her ( grandmother, old woman) (highly marked)
(Note how the infixThe use of this term in Bantu linguistics means "formatives placed in the middle of a word" and not the more common "formatives placed in the middle of a morpheme."
Bantu languages, being agglutinative, construct words by placing affixes around a stem, and if an affix is always placed after other affixes but before the stem (such as in certain verb tenses and moods) then it is usually called an "infix."
disappears when the verb is followed by a direct object, even if it is not the object indicated by the concord.)
Like all other Bantu languages, Sesotho has inherited certain restrictions on the order of the extensions.
The most basic rule (which is broken by very few languages) is that the passive and the short causativeSee the note above on the alveolarization of the applied.
always follow all the other extensions (including the perfect , which is always used with the final vowel ).
Although it is probable that Proto-Bantu had fairly strict restrictions on the order of the other extensions, these rules have been relaxed somewhat in modern Bantu languages.
For example, since the causative  is normally ordered closer to the verb stem than the reciprocal  (or indeed, most other extensions), to form the causative of the reciprocal the (dead) short causative (Proto-Bantu *-î-) is usually used instead, therefore palatalizing the reciprocal to .
Various other unexpected palatalizations and alveolarizations brought on by combinations of the causative with other extensions may be similarly explained by the action of the short causative either replacing the normal causative, or being used together with the long causative around another extension (causative + other extension ⇒  + other extension + *-î- ⇒  + modified extension).
Certain extensions (intensive, perfective, associative, reversive, and augmentative) are obviously fossilised compound extensions.
Often a derived verb may continue being used while the original verb disappears from the language.
Note that, since prefixes are of the shape CV or V (where C represents a consonant and V a vowel), verb roots end without the final vowel, prefixes are of the shape (VC)* (* indicates possible repetition) and the final vowel simply has shape V, this and other structures reinforce the open syllable structure of the Bantu languages, and very few languages have broken it.
Non-verbal derivatives
Verbs may also, to a lesser degree, be derived from nouns, qualificatives, and ideophones.
---- Denominative verbs are stative verbs derived from nouns and qualificatives.
They are formed by suffixing  (dead) or  to the stem, giving a verb meaning "become...."
intelligence ⇒;  become intelligent
soft (relative) ⇒;  become soft
The monosyllabic adjectival roots (except  some, and  four) become nasalized before assuming the suffix.
Furthermore, the vowel of  (beautiful) changes to :
ugly ⇒;  become ugly
new ⇒;  become renewed
beautiful ⇒;  become beautiful
black ⇒;  become black
Causatives are formed regularly by changing the  suffix to .
Perfects are formed regularly by changing the  suffix to .
This extension (the long ) is quite rare in the Bantu languages, though all languages have a few verbs in this form even if it may no longer be active.
----
Deideophonic verbs are formed rather irregularly from disyllabic ideophones.
They are miscellaneous in nature and are formed by the addition of several suffixes such as , , , , , , ,  etc.
However, common across the Bantu language group are the forms  for the intransitive,  for the transitive, and  for the causative.
Additionally, the causative of the intransitive may be formed regularly with the suffix , but this is usually not done if the causative  form is regularly used.
of turning over ⇒;  flip over, experience a car accident
of being completely full ⇒;  burst open
of picking up and throwing forward ⇒;  (of large herbivores) stand up and move in a certain direction, and  initiate a process or plan
---- When forming these verbs, the tone of the first syllable of the verb (its characteristic tone) corresponds to the tone of the first syllable of the part of the original word used to form the verb (usually the root, but a complete noun for monosyllabic roots).
Thus verbs derived regularly from monosyllabic stems are all L verbs (due to the null toned prefix).
easy, easyness [ _ _ ¯ ] ⇒;  become easy (L verb)
angry, anger [ _ ¯ _ ] ⇒;  become angry (H verb)
strong, strength [ _ _ ] ⇒;  become strong (L verb)
Inflexion during conjugation
In addition to the verbal derivatives, the following changes may occur to the stem's suffix , during conjugation:
The  changes to -e () to form the perfect subjunctive tense and certain tenses of the negative conjugation.
This vowel always causes the syllable carrying it to assume a high tone.
The  changes to -e () to form the present-future tense of the subjunctive mood.
The  becomes  to form the plural of the imperative and certain relative tenses.
The  becomes  to form the perfect stem.
Various phonological situations may change this basic construct.
The general rules for the formation of the perfect are varied due to various mostly phonological interactions with the suffix:In the formation of the perfect of many of the derivational suffixes listed earlier, many of the complications are caused by a process known as "imbrication" where the perfect suffix  loses its consonant and the vowel is placed before the previous consonant, thus causing changes to the previous vowel (and to the following consonant).
<p></p> In isiZulu the forms are very predictable, with suffixes of the form aCa generally changing to eCe (aCa + ile ⇒; aiCe ⇒; eCe).
Generally,  is suffixed
buy ⇒  bought
Verbs ending in  replace it with
go ⇒  went
For monosyllabic stems, i-stems suffix  and e-stems suffix
drink ⇒  drank
Disyllabic verbs ending in  change it to
send ⇒  sent
Polysyllabic verbs ending in ,  (most), , and  cause the  to alveolarise to
wash ⇒  washed
Verbs ending in  of more than one syllable and disyllabic reciprocal verbs change the  to
sing ⇒  sangand so forth...
For all verbs, however, the past tense may also be indicated with the simple  (past subjunctive) multi-verbal conjugation, although its meaning does diverge somewhat from that of the perfect (especially with stative verbs)
They did sing
==Conjugation==
Verbal conjugation is by far the most complex and varied topic in the Bantu languages.
The tenses are conjugated by means of prefixes and infixes indicating person, mood, implication, and aspect.
There are two conjugations, the positive and negative, and most tenses have corresponding forms in each.
The language recognises four moods: the indicative, the subjunctive, the potential, and the participial sub-mood (infinitives are nouns and imperatives are interjectives).
The moods may be divided into tenses according to time (remote past, immediate past, present, immediate future, and remote future) and implication (simple, progressive, and exclusive), which may be further subdivided according to aspect into indefinite, continuous, and perfect.
There are also many often complex compound tenses, indicated by changes in tone and the use of deficient verbs (multi-verbal conjugations).
Import refers to how the object of the verb is indicated.
Verbs can be either:
Intransitive, with no direct object
I become quiet
Transitive, with a single direct object
I thank you
Ditransitive, with two objects
I give my sibling food for the journey
Locative, with a locative adverbial construction often indicated by  /
I enter my home
Agentive verbs (usually passives), which need a copulativeThe fact that this is indeed the simple copulative (and not just a prefix that happens to be allomorphic with it) is evidenced by looking at these verbs in a language such as isiZulu where the simple copulative is much more complicated and yet coincides perfectly with the marking of the objects of agentive verbs.
used as an agent adverb indicated by
They are helped by the dictionary
Instrumental verbs, which use an instrumental adverb indicated by
We travel by car
Conjunctive verbs (mostly reciprocals), which use the conjunctive proclitic
We agree with them
Many verbs can have more than one import ( (walk) can be locative, instrumental, or conjunctive;  (speak) can be intransitive, transitive, instrumental, or conjunctive) and verb derivatives can also change the import of the stem.
Many shades of meaning are achieved by the employment of deficient verbs in multi-verbal conjugations.
Many tenses and moods may only be formed in this manner.
The verbal complex
In the Bantu languages, the typical full structure of verbs, excluding contractions, is as follows (the * indicates possible iteration):
In Sesotho, as with most other Bantu languages, this has been modified somewhat, resulting in the following structure ("I shall no longer look on his behalf"):
Though indicative tenses form their negatives with the prefix , many other moods and tenses form their negatives with an infix (either  or , depending on the specific tense).
The verbal auxiliary infixes are used to indicate tense, certain forms of the subjunctive, progressive implication, the potential mood, as well verb focus in the present indicative tense.
The verbal infixes always follow the simple infixes, though there are some instances where two simple infixes are used at the same time.
The extensions include suffixes used in verbal derivatives as well as the perfect  (which is always followed by the final vowel ).
With the exception of the verb root, each of these formatives is monosyllabic, but in Sesotho some verbal infixes (those that are contractions) and extensions (those that are obvious compoundings of earlier forms) also have more than one syllable.
Additionally, the structure (obj conc. + stem) is often called the "macrostem" in various syntactical and tonal theories.
Many aspects and tenses are indicated by multi-verbal conjugations and, with the exception of the subjectival concord, the root, and the final vowel, most of these formatives are not always necessary.
Note that infinitives and imperatives (both of which do not have subjectival concords) may be considered separate parts of speech (nouns/gerunds and interjectives).
Deficient verbs are never used with objectival concords, and the use of the other formatives with them is also limited.
This structure obviously ignores any possible enclitics that is suffixed.
Tenses
The Sesotho tense system is somewhat less complex (though not necessarily less complicated) than that of other Bantu languages.
Whereas many Bantu languages clearly divide the time into remote past, immediate past, present, immediate future, and remote future, not all Sesotho moods divide very clearly between immediate and remote tenses, and the differences in meaning are not as great.
'''Examples indicating the tenses (positive simple indicative mood)'''
Moods
There are basically four moods.
<ref name="alt_moods">This is Doke's analysis.
The issue of how many moods individual Bantu languages have exactly is not entirely settled due to their complex morphologies.
A more inclusive scheme for Sesotho (and the one taught to first language speakers in school) is as follows:
'''Sesotho moods'''
According to Doke's analysis, the situative is just the participial sub-mood, the qualificative is a form of the participial, the consecutive is the past subjunctive (used when telling stories, it sounds as if the story-teller is using the present tense to describe a past action, but the subjectival concords differ from those of the indicative present), the habitual is a multi-verbal tense using a specific set of deficient verbs (Group III in Doke's classification) followed by a perfect subjunctive (and its negative uses another deficient verb in the same group); while the infinitive and most imperatives are not verbal moods (they are separate parts of speech and cannot be used as the predicate of a sentence, though imperatives can form interjectival sentences and there is a form of the subjunctive that could alternatively be interpreted as an imperative using subjectival concords).
The analysis is further complicated by the seemingly unpredictable form of the negative for each tense of each verb.
The one point most Bantuists seem to agree upon is that, apart from the indicative mood, Bantu languages also have a subjunctive formed (usually) by changing the final vowel of the verb to *-e (which corresponds to Sesotho ).
</ref>
The indicative mood indicates what is, was, or will be.
It uses the basic subjectival concord.
The potential mood indicates that an action is possible.
It uses similar concords to those of the subjunctive.
The participial sub-mood is so-called since it has forms corresponding to the tenses of both the above moods (most of the indicative, but only the present potential).
It is widely used after certain conjunctives, in forming the complements of numerous multi-verbal tenses, and in the formation of relative clauses.
The subjunctive mood is used in subordinate or consecutive constructions, in many cases being parallel in usage to the Latin subjunctive.
'''Examples indicating the moods (present tense)'''
Implication
Within the indicative and participial moods, tenses may be further sub-divided according to the implication of the action.
The simple implication indicates an action in no way qualified.
The progressive implication indicates an ongoing action.
The exclusive implication indicates an action that has not been happening until now.
'''Examples indicating implication (indicative mood)'''
Aspects
The tenses may be further divided according to the aspect of the action.
In Sesotho there are at least three aspects, the definite, the continuous, and the perfect.
'''Examples indicating aspect (with a multi-verbal indicative past tense)'''
Deficient verbs
Deficient verbs, so called because they require a subordinate or complementary verb to complete their action, are used to form many tenses and to impart certain shades of meaning.
They form part of multi-verbal conjugations consisting of a string of verbs, each with its own subjectival concord.
Deficient verbs, being "deficient", are never used alone.
Many of them are irregular in form and have irregular inflexions.
Monosyllabic deficient verbs are never used with the penultimate  that is sometimes used with normal verbs (not to be confused with the indefinite concord).
Many of these verbs seem radical in nature, while others (especially those with complex implications) are obviously derived from certain extant normal verbs (but are used with slightly different meanings).
What distinguishes the deficient usage of these normal verbs is the fact that they are followed directly by another verb and affect its meaning (and only the main verb may carry an objectival concord).
I no longer know
I knew
I shall (at some specific time) know
I should/would have known
I may indeed know
I will at least know
I may still know
I nearly knew
I shall no longer know
I have to know
Notes
References
Coupez, A., Bastin, Y., and Mumba, E. 1998.
Reconstructions lexicales bantoues 2 / Bantu lexical reconstructions 2.
Tervuren: Musée royal de l’Afrique centrale.
de Schryver, G. M., and Prinsloo, D. J. 2000.
Towards a sound lemmatisation strategy for the Bantu verb through the use of frequency-based tail slots — with special reference to Cilubà, Sepedi and Kiswahili.
Makala ya kongamano la kimataifa Kiswahili 2000.
Proceedings: 216–242, 372.
Doke C. M. 1963.
Text Book of Zulu Grammar.
Cape Town.
Doke, C. M., and Mofokeng, S. M. 1974.
Textbook of Southern Sotho Grammar.
Cape Town: Longman Southern Africa, 3rd.
impression. .
Downing, L.J, 2001.
Tone (Non-) Transfer in Bantu Verbal Reduplication.
Typology of African Prosodic Systems Workshop.
Bielefeld University, Germany.
Güldemann, T.
The history of quotative predicates: Can lexical properties arise out of grammatical construction?
Hyman, L. M. 2003.
Segmental phonology.
In D. Nurse & G. Philippson (eds.), The Bantu languages, pp.
42–58.
London: Routledge/Curzon.
Hyman, L. M. 2007.
Niger–Congo verb extensions: Overview and discussion.
In D. L. Payne and J Pen̈a (eds.), Selected proceedings of the 37th Annual Conference on African Linguistics, 149-163.
Somerville, MA: Cascadilla Proceedings Project.
Lodhi, A. Y. 2002.
Verbal extensions in Bantu (the case of Swahili and Nyamwezi).
In Africa & Asia, No 2, 2002, pp 4–26.
Department of Oriental and African Languages, Göteborg University.
External links
Verbs Category:Verbs by language
