Descriptive and typological study on the adjective predicate structure in Koryak

The present study dealt with the traditionally so-called 'qualitative adjective' in Koryak (N form, for short) and conducted the following studies by viewing it in the continuum from nouns to verbs. (1) I aimed to refine the description on the boundary part between adjectives and verbs. Especially, morphological and syntactic differences between noun-like N forms of property predication and verb-like KU form of event predication were clearly demonstrated by this study. (2) I pointed out that the different manifestation of N form in the genetically related languagese, especially, Chukchi and Alutor, was probably related to the different verb inflectional systems in different languages. (3) I aimed to place N form in the typological perspective. (4) I also examined several related phenomena such as antipassive, intransitive/transitive verb alternation, and nominalization.