Sesotho grammar

This article presents a brief overview of the grammar of the Sesotho and provides links to more detailed articles.
Typology.
The Sesotho language may be described in several ways depending on the aspect being considered.
Formatives.
Bantu languages are agglutinative — words are constructed by combining discrete formatives (a.k.a. "morphemes") according to specific rules, and sentences are constructed by stringing together words according to somewhat less strict rules. Formatives alone cannot constitute words; formatives are the component parts of words.
These formatives may be classed generally into roots, stems, prefixes, concords, suffixes, verbal auxiliaries, enclitics, and proclitics.
Roots are the most basic irreducible elements of words and are immutable (except under "purely phonetic changes"). Entire words are built from roots by affixing other formatives around the root as appendages; every word (except contractions and compounds) contains exactly one root, from which it derives its most basic meaning (though, technically speaking, the root by itself does not really have any meaning). Roots are the basis of the Sotho parts of speech.
The following words:
are all formed from the root "-rut-".
Although in some cases various phonetic processes may ultimately change the root's form in predictable ways (such as the nasalization in the last two examples above) the root itself is considered to be unchanged.
There can be no doubt that words never emerged simply as roots. The root is a dead thing — the study of roots is primarily to aid the compilation of dictionaries, to further the study of comparative Bantu linguistics, and to help trace the evolution and connections of different languages. Many roots are shared by a wide range of Bantu languages.
Some further examples of roots:
Note that although it is often true that the common root of a number of words may be defined as having some inherent meaning, very often the connection between words sharing common roots is tentative, and this is further evidence that prefix-less noun roots and stems are ultimately meaningless. Roots from a common source help to connect nouns with certain meanings, and often the class prefixes are merely incidental.
Stems are not much different from roots, and the difference between them is fairly arbitrary. Though all roots are also stems, stems often include derivational suffixes, which roots never include. Additionally, the ending "-a" is included in the verb stem but not in the root (if it was truly part of the core root then it wouldn't be replaced in verb derivations and conjugations).
For example, from the verb root -rar- one may derive several words, including the following (stems in bold):
These may all be listed under the same headword in a dictionary.
Note how, in the above example, not only do many of the words have slightly unexpected or expanded meanings, but the form "ho rarabolla" uses an irregular derivation pattern.
Prefixes are affixes attached to the fronts of words (noun class prefixes are called such by convention, even though bare roots are not independent words). These are distinct from concords, since changing the prefix of a word may radically alter its meaning, while changing the concord attached to a stem does not change that stem's meaning.
Concords are similar to prefixes in that they appear before the word stem. Verbs and qualificatives used to describe a noun are brought into agreement with that noun by using the appropriate concords.
There are seven basic types of concords in Sesotho. In addition, there are two immutable prefixes used with verbs that function similarly to concords.
Suffixes appear at the ends of words. There are numerous suffixes in Sesotho serving varied functions. For example, verbs may be derived from other verbs through the employment of several verbal suffixes. Diminutives, augmentatives, and locatives may all be derived from nouns through the use of several suffixes. Most suffixes, except the noun locative suffix and verb inflexional suffixes, are derivational and create new stems.
Strictly speaking the final vowel "-a" in verb stems is a suffix, as it is often regularly replaced by other vowels in the derivation and inflexion of verbs and nouns.
Verbal auxiliaries are not to be confused with auxiliary verbs or deficient verbs. They may appear as prefixes or as infixes. Basically, all formatives that may be affixed to the verb root, excluding suffixes and the objectival and subjectival concords, are verbal auxiliaries.
These include prefixes such as "ha-" used to negate verbs, and infixes such as "-ka-" used to form potential tenses.
The infix "-a-" used to form the past subjunctive (not to be confused with the infix "-a-" used to form the present indicative positive and the perfect indicative negative; and also used as a "focus marker") merges with the subjectival concord resulting in what is often termed the "auxiliary concord."
Infix verbal auxiliaries may be further divided into simple infixes and verbal infixes. The main difference lies in the fact that, when forming the relative construction (participial sub-mood) of a verbal complex employing the infix, the verbal infixes may be detached from the main verb and carry the "-ng" suffix with the main verb converted to an infinitive object, while a verb using a simple infix has to carry the suffix itself.
Enclitics (leaning-on words) are usually suffixed to verbs and convey a definite meaning. They were probably once separate words.
They may be divided into two categories: those that draw forward the stress (as normal suffixes), and those that don't alter the word's stress. The second type may result in words that don't have the stress on the penult (as is usual with Sesotho words).
Proclitics are clitics that appear at the fronts of words. There is only one regular proclitic in Sesotho — "le-" — which is normally prefixed to nouns, pronouns, qualificatives, and adverbs as a conjunction, to convey the same meaning as English "and" when used between substantives. Some Indo-European languages have a post-clitic with a similar meaning (for example Latin "-que" and Sanskrit च "-ca").
It may also be used to express the idea of "together with" and "even."
There are also a number of curious utterances where the proclitic is used to express emphatic negatives.
This is similar to the use of the Latin "et" ('and') to mean "even" or "not", as in the supposed last words of Caesar – "Et tu, Brute?" meaning "Not (or even) you Brutus?".
The Sesotho word.
The Sotho language is spoken conjunctively yet written disjunctively (that is, the spoken phonological words are not the same as the written orthographical words). In the following discussion, the natural conjunctive word division will be indicated by joining the disjunctive elements with the symbol • in the Sesotho and the English translation.
Certain observations about the Sesotho word (and those of many other Bantu languages in general) may be made:
Not counting compounds and contractions, the word begins with zero or more proclitics, infixes, and prefixes, followed by a stem, followed by zero or more suffixes (which extend the stem) and enclitics.
For example, in the word "Ke•a•le•dumedisa" ('I•greet•') the stem is the verb stem ('agree') surrounded by the subjectival concord "ke-" (first person singular), the present definite positive indicative infix marker "-a-", the objectival concord "-le-" (third person plural), and the verb extension "-isa" (causative, but in this case it gives the idiomatic meaning of "greet").
The phonological interactions can be quite complex:
Here the formatives are distorted by two instances of nasalization.
No matter how many prefixes, suffixes, enclitics, and proclitics are appended to the word stem the complete word only has one main stressed syllable. This stress is most prominent on the final word in the sentence or "prosodic phrase."
Note the monosyllabic conjunctive "ha".
Note that, unlike the Nguni languages, Sesotho does not have rules against juxtaposing strings of vowels:
Certain situations may make the word division complex. This can happen with contractions (especially with deficient verb constructions), and in some complex verb conjugations. In all these situations, however, each proper word has exactly one main stressed syllable.
Parts of speech.
Each complete Sesotho word belongs to some part of speech.
In form, some parts of speech (adjectives, , some relatives, and all verbs) are radical stems, which need affixes to form meaningful words; others (possessives and copulatives) are formed from full words by the employment of certain formatives; the rest (nouns, pronouns, adverbs, ideophones, conjunctives, and interjectives) are complete words themselves, which may or may not be modified with affixes to form new words.
The difference between the four types of qualificatives is merely in the concords used to associate them with the noun or pronoun they qualify. Since the simplest copulatives do not use any verbs whatsoever (zero copula), entire predicative sentences in Sesotho may be formed without the use of verbs.
Notes.
Sotho words translation in Isizulu