Bi-Predicative Constructions with Subordinate Verbal Predicate in the Conditional Mood as Expression of Evidentiality in Yakut (as compared to Altaic, Tuva, and Khakass)

Bi-predicative constructions (BPC) in Yakut can have a mono-finite (MF) and bi-finite structure (BF) structure. Being an agglutinative language, Yakut shows the prevalence of the economy principle in using special grammatical means, thus, the core of BPC is represented by MF constructions subordinate parts of which are headed by infinite – participle, adverbial participle, and predicative – forms. The predicative parts of these BPC are connected by the following word relations: parataxis / fixed word order, izafet, government, agreement, postpositions. The fixed word order – a prepositive word (subordinate predicate) + a postpositive word (main predicate) – is the major order rule of both BPC and the whole Yakut grammar structure. BPC with thesubordinate predicate expressed by verbs in the conditional mood, the verbal proper (finite) form, are considered BF structures. However, acting as asyndetic BPC, they draw closer together with MF BPC functionally.