Chapter 96The Copula ne and Predicate-Nominal Clauses

96.1 Overview

ne ‘be, become (copula)’ ranks as the second most frequent token in the Hokkaido corpus of nearly 1.6 million running words, behind only the existential an ‘exist, be (located)’ Nakagawa (2024: §4.2.2). The count conflates several homophones — the predicate-nominal copula, a mutative case postposition, and anaphoric/interrogative roots — but the copular use accounts for a substantial share. Predicate-nominal clauses are accordingly among the most pervasive structures in the language.

When the predicate of a finite clause is a noun phrase, the copula ne must appear after it. Without ne, a sequence of two noun phrases does not constitute a grammatical clause; the element occupying the predicate position in Ainu is always a verbal head Nakagawa (2022: 474). This sets the construction apart from the other two major non-dynamic predicate types: the existential an / oka(y), which handle existential and locational predication, and the property-concept verbs (pirka 'be good', poro 'be big'), which predicate directly without any copula. The distribution is determined by argument structure: ne is required when and only when the predicate is a nominal Satō (2008: 20–21); Refsing (1986: 145). Ijäs's pedagogical grammar covers the copula in its treatment of basic clause types Ijäs (2023).

96.2 Clause template

The predicate-nominal clause has the shape [Subject] [Complement-NP] ne. The complement takes no case marker and immediately precedes the copula. Satō isolates the three-constituent structure as 主語 + 補語 + 指定詞 ne Satō (2008: 20):

The complement may be a bare noun, a noun modified by an adnominalised verb, or itself a nominalised clause Refsing (1986: 145, 272). Refsing states that ne "cannot form a sentence by itself" and "always needs a nominal complement" Refsing (1986: 272). Nakagawa's constituent parse of a copular sentence — [Adverbial][Complement-NP][ne VP][ruwe ne clause-final] — confirms that the copula heads the verb phrase with everything to its left serving as complement or adverbial Nakagawa (2024: 361).

96.3 Person marking and verbal status

ne takes the transitive-subject (A) person affixes and never the object (O) affixes. The three primary sources state the same morphological fact in different analytical terms. Nakagawa classes it as a 2-place verb (2項動詞), sub-typed コピュラ Nakagawa (2024: 132). Satō treats it as a distinct subclass 指定詞 (designative), separated from ordinary transitives because it inflects and negates differently Satō (2008: 21). Shibatani characterises it as taking "the same personal affixes as do transitive verbs" on the grounds that it requires a complement to be semantically complete Shibatani (1990: 19). Refsing and Tamura file it as a fourth verbal subclass, the copula Refsing (1986: 145). For the earlier tradition, Kindaichi called it an "incomplete intransitive" glossed 'become', and neither Kindaichi nor Chiri applied the concept of copula to it — Tamura first identified it as such, as Refsing documents Refsing (1986: 145); Kindaichi & Chiri (1936) ‹contested›. All analyses agree on the morphological reflex: the 1SG prefix on ne is ku= (A set), not en= (O set).

Nakagawa's minimal pair establishes the constraint directly. okkayo ku=ne 'I am a man' is grammatical; the restructured *tanpe kar pe en=ne, which places the object prefix en= on the copula, is ungrammatical. The intended reading ('it is me who made this') requires a different clause: kani tanpe ku=kar Nakagawa (2024: 132). The complement noun phrase receives no person prefix; only the subject position does. The person paradigm is set out in Chapter 62 (Architecture of the Personal-Affix System: The Four Persons and the S/A/O Paradigms).

The copula does not supplete for number: a single form ne serves both singular and plural subjects Nakagawa (2024: 146). This distinguishes it sharply from the existential an (sg) / oka(y) (pl), which shows obligatory number suppletion tracking the subject Nakagawa (2024: 146); Refsing (1986: 145). Number suppletion in the existential is treated in Chapter 97 (Existential and Locational Clauses (an / oka)); the claim that the copula suppletively has a plural form is addressed in §Competing analyses below.

96.4 Semantic readings

Refsing describes the copula as covering "the equative and attributive meanings of the copula" without filling existential or locative roles Refsing (1986: 145); Nakagawa (2022: 474). The attested uses fall into three functional types. The sources consulted do not apply the Higgins four-way classificational/specificational/identificational grid; the following typology is editorial synthesis from the attested data, not a claim drawn from any single source ‹speculative›.

Classificational (class-membership): the subject is assigned to a category; the complement is non-referential, denoting a kind. This is the default and most frequent use Nakagawa (2024: 132); Satō (2008: 20):

Equative / identificational: both subject and complement are referential noun phrases placed in an identity relation Refsing (1986: 145):

Specificational / naming: the subject is a nominalised clause and the complement supplies the label. The formal-noun evidential constructions (hawe ne, ruwe ne) are structurally of this type — the formal noun nominalises a clause and ne predicates the result. A naming instance at Nakagawa 2024: 392 exemplifies the pattern: tap a=ye katu Piratur sekor a=ye hawe ne 'the way it is now said is "Piratur"' Nakagawa (2024: 392). Whether Hokkaido Ainu morphosyntactically distinguishes specificational from identificational readings is not addressed by any read source ‹speculative›.

96.5 The stative–inchoative duality

ne carries no morphological mark for change of state: it covers both 'be X' and 'become X', a duality shared by other Ainu verbs including the existential an Nakagawa (2022: 477). The same sentence Tan-kur poro nispa ne can mean 'this person is a great chief' or 'this person became a great chief'; context determines the reading Shibatani (1990: 19):

The stative/inchoative range does not extend to property-concept verbs: *hure ne 'become red' and *poro ne 'become big' are ungrammatical. Property words already predicate inchoatively without a copula; inserting ne after them is the classic learner error Nakagawa (2024: 119). See Chapter 99 (Property-Concept (Adjectival) Predication without a Copula) and Chapter 37 (The 'No Adjective Class' Thesis: Property Concepts as Stative Verbs).

96.6 Attributive ne in noun-noun compounds

Between two nouns, ne establishes identity or class membership within the noun phrase — what Refsing classes as an attributive postposition alongside un and kor Refsing (1986: 160–161):

A third Refsing example: sapa ne kur 'chief' (lit. 'person who is a head') Refsing (1986: 160–161). The construction is the attributive counterpart of the predicative copular clause; ne is the same item in an NP-internal position. For the concept-form and possessed morphology of noun heads in such compounds, see Chapter 44 (Concept Form vs. Affiliative (Possessed) Form) and Chapter 46 (Adnominal Possession: Double Marking and the Appositive Construction).

96.7 The mutative ne

The inchoative 'become' reading of ne grammaticalises further into a mutative/translative case postposition marking the result of a change, glossed transl:

Refsing notes that the dynamic 'become' use is the same ne that functions elsewhere as the copula, now in a result-marking role Refsing (1986: 145). A community discussion (thegodofneet, aynu-corpora Discord 2024-11-13) characterises this as 転成格 '〜に（なる）' (mutative case) and observes that ~ne an — mutative ne plus the existential an — corresponds transparently to 'become X', while ~ne kor is awkward because Japanese 'に持つ' ('hold as') is not a natural expression aynu-corpora Discord (2023–2026) ‹contested›. The grammaticalization pathway from 'be' to a translative/result marker is cross-linguistically well attested (Hopper & Traugott 2003). The conjunctive particle hine (< hi + ne) is a further grammaticalised descendant; see Chapter 131 (Clause Linkage in Ainu: Typology and Inventory).

96.8 Negation: X ka somo ne

Copular predicates are negated by the idiom X ka somo ne: the scalar particle ka 'even' and the negative adverb somo are inserted between the complement and the copula. The alternative *ne ka somo ki does not occur Satō (2008: 22); Nakagawa (2024: 407):

This pattern sets the copula apart from property-concept verbs, which use standard clausal negation (somo V / V ka somo ki), and from the existential, which is negated by the suppletive lexical negative isam:

Full treatments are in Chapter 126 (Standard Clausal Negation with somo) and Chapter 127 (Negative Existential and Possessive: isam).

One under-described feature is that ne in ka somo ne frequently carries no subject-person prefix — and this prefix-drop also occurs, less regularly, outside negation. No read grammar catalogues the behaviour; Satō 2008: 22 attests the idiom without commenting on its person-marking pattern. A community observation (nukopoli, aynu-corpora Discord, 2023-12-25) flags it as a genuine micro-gap in the description, noting only that the reason is unclear aynu-corpora Discord (2023–2026) ‹speculative›. The interaction of copula negation with TAM and the formal-noun tail is treated in Chapter 100 (TAM, Evidentiality, and Negation on Nonverbal Predicates).

96.9 The formal-noun evidential tail

At the right edge of a clause, ne closes the formal-noun evidential construction: a clause is nominalised by one of four bound formal nouns (ruwe, siri, hawe, humi), and the result is predicated with the copula. Structurally this is the predicate-nominal clause described above, with a nominalised-clause subject. The copula here is systematically opposed to the existential an: formal-noun + ne marks the declarative; formal-noun + an marks the content question Nakagawa (2024: 392–395):

The construction further cannot modify a common noun (*pirka ruwe ne kewtum is ungrammatical), and its interaction with clause-linking material is ordered — kusu ne ruwe ne is well-formed but *ruwe ne kusu ne is not Nakagawa (2024: 393). A community discussion (nukopoli, aynu-corpora Discord, 2024-11-09) confirms both constraints aynu-corpora Discord (2023–2026). The formal nouns that make the construction possible are defined in Chapter 35 (The Formal / Defective Noun Set (ruwe, hawe, siri, humi, hi, pe, kur)); the evidential system as a whole is in Chapter 120 (The Nominalization-plus-Copula Evidential Schema); and ruwe ne specifically in Chapter 121 (ruwe ne — the Inferential / Visual-Trace Evidential).

96.10 Competing analyses of ne

Four analytical disputes run through the literature and bear directly on how ne is characterised.

Copula vs. 2-place verb vs. special subclass. The positions are surveyed in §Person marking and verbal status above ‹contested›. Practically, all analyses converge on the same morphological facts: A-set prefixes only, no O prefix, no sentence-final use without a complement. The terminological disagreement — whether to call ne a copula subtype of the verb, a distinct 指定詞, or simply a transitive-type verb — has no consequence for the glossing conventions used in this grammar (which follow Nakagawa (2024: 132) in treating it as a 2-place verb sub-typed COP).

Copula vs. existential — separation or overlap. Refsing states the division most clearly: ne covers equative and attributive meanings while an / oka covers existential and locative ones, with no overlap Refsing (1986: 145). Nakagawa and Satō maintain the same two-way partition: ne is 2-place, an is 1-place Nakagawa (2024: 132, 146); Satō (2008: 3–4, 20–21). Shibatani, by contrast, files the locational clause ku-kor kotan ta oray-as 'we were in my village' under "Copular sentences" and labels oray a "plural suppletive copula form" Shibatani (1990: 19) — conflating the existential plural with the copula ‹contested›. The form oray does not appear in the Hokkaido corpus as a copula and is unattested in that function in any other read source ‹corpus-suggested›; the Shibatani example is most plausibly an existential locational clause.

Number invariance of the copula. On the Nakagawa/Refsing account, the copula shows no number suppletion — one form ne for both singular and plural subjects — in contrast to the existential pair an / oka(y) Nakagawa (2024: 146). The only apparent counterevidence is Shibatani's oray, dismissed under the preceding point ‹consensus›.

Classificational/specificational typology. The sources consulted use "equative" and "attributive/class-membership" as the descriptive labels for the semantic range of ne Refsing (1986: 145); Nakagawa (2022: 474). No source applies the Higgins-style four-way grid to Ainu, and no read source tests whether Hokkaido Ainu morphosyntactically distinguishes a specificational from an identificational reading. The three-way table in §Semantic readings is editorial synthesis ‹speculative›.

The pronominal-argument question. Whether the overt complement NP is a syntactic argument or an adjunct on a pronominal-argument head is unresolved. Refsing's observation that ne "always needs a nominal complement" and "cannot form a sentence by itself" Refsing (1986: 272) points toward argument status, but because the complement is never person-indexed, it occupies the same formally indeterminate position as other non-pronominalised objects in a head-marking language Nakagawa (2024: 132). The broader question is pursued in Chapter 62 (Architecture of the Personal-Affix System: The Four Persons and the S/A/O Paradigms) ‹contested›.