The Seri language is a
head-final language. The verb typically occurs at the end of a clause (after the subject and direct object, in that order), and main clauses typically follow dependent clauses. The possessor precedes the possessum. The language does not have many true adjectives; adjective-like verbs follow the head noun in the same kind of construction and with the same kind of morphology as verbs in the language. The words that correspond to prepositions in languages like English are usually constrained to appear before the verb; in noun phrases they appear following their complement. Verbs, nouns, and postpositions are inflected word categories in Seri.
Nouns Nouns inflect for plurality through suffixation. Compare 'mourning dove' and 'mourning doves'. Pluralization is very complicated; for this reason, each noun is listed in the dictionary with its plural form. Some nouns ostensibly use an infix to indicate plural: 'grasshopper', 'grasshoppers'. A few nouns have completely suppletive plural forms: 'Seri person', 'Seri people', 'thing', 'things'. Kinship terms and body part nouns inflect for possessors through prefixes (with slightly different prefix sets). Compare 'your son' (of man) and 'your head'. As they are obligatorily possessed nouns, a special prefix appears when no possessor is specified, and kinship terms sometimes have additional material at the end as well. Compare 'one's son', and 'one's head'. Some nouns have an additional plural form to distinguish between singular and plural possessors: 'his/her eye', 'his/her eyes', 'their eyes'.
Verbs Finite verbs obligatorily inflect for number of the subject, person of the subject, direct object and indirect object and tense/mood. For subject person and number, compare 'I ran', 'you (sg.) ran', 'it ran, she ran, he ran', 'we ran', 'you (pl.) ran', 'they ran'. For object person (which is written as a separate word in the orthography although it is really just a prefix), compare 'I saw you (sg.)', 'I saw you (pl.)', and 'I saw him/her/it/them'. For indirect object (also written as a separate word except in third person), compare 'I showed it to you (sg. or pl.)', 'I showed it to him/her/them'. The verb "tenses" divide between medial forms and final forms, irrealis and realis: (irrealis, medial, third person) '(if) it/she/he runs', (realis, medial, third person) '(as) it/she/he ran', (distal realis, final, third person) 'it/she/he ran', (proximal realis, final, third person) 'it/she/he ran', (irrealis, final, third person) 'it/she/he will run'. A verb may also be negative and/or passive. A transitive verb may be detransitivized through a morphological operation, and causative verbs may be formed morphologically.
Postpositions and relational preverbs The postpositions of Seri inflect for the person of their complement: 'on me', 'on you', 'on her/him/it'. Most of the words that have been called postpositions at one time (and some of which still are, in limited situations) are actually relational preverbs; they must occur in a position immediately before the verbal complex and are commonly not adjacent to their semantic complements. Some of these have suppletive stems to indicate a plural complement; compare 'with you (sg.)' and 'with you (pl.)'.
Articles Seri has several
articles, which follow the noun. The singular indefinite article (
a,
an) is before consonants, and before vowels (it presumably is historically related to the word for "one", which is ). The plural indefinite article (roughly equivalent to
some) is . {{interlinear|lang=sei|indent=2 {{interlinear|lang=sei|indent=2 There are several different
definite articles (
the), depending on the position and movement of the object: • (singular) and (plural) are used with seated objects. • / (sg.) and (pl.) are used with standing objects. and are dialectal variants. • (sg.) and (pl.) are used with objects lying down. • (sg.) and (pl.) are used with close, approaching objects. • (sg.) and (pl.) are used with close objects going away. • (sg.) and (pl.) are used with distant, approaching objects. • (sg.), (pl.), (sg.), and (pl.) are used with distant objects going away. • (sg. & pl.) are used with locations and
verbal nouns. is pronounced after vowels and after consonants. • (sg.) and (pl.) are unspecified. is pronounced before consonants, before vowels, and at the end of an utterance. These articles are derived historically from nominalized forms (as appear in relative clauses in Seri) of verbs: ("that which sits"), ("that which stands"), ("that which lies"), ("that (especially soft item like cloth) which is located"), ("that which comes"), ("that which goes"), and ("that which is located"; root )
Demonstratives Four simple
demonstrative pronouns occur, plus a large set of compound demonstrative adjectives and pronouns. The simple demonstratives are ("that one"), ("those, that (mass)"), ("this one"), and ("these, this (mass)"). The compound demonstratives are formed by added a deictic element to an article. Examples include ("that (standing far off)"), ("that (standing closer)"), ("this (standing)"), ("that (sitting far off)"), ("that (lying far off)"), etc. These compound demonstratives may be used either as adjectives (at the end of the noun phrase) or as pronouns.
Personal pronouns Two personal nonreflexive pronouns are in common use: (first person, "I", "we") and (second person, "you" (singular or plural). These pronouns may have singular or plural referents; the difference in number is indicated in the verb stem. The reflexive pronouns are "myself", "yourself", "herself, himself, itself", "ourselves", "yourselves" and "themselves". ==Lexicon==