The paper analyses the structural-semantic types of analytical constructions (AC) and composite sentences (CS) that they formed (based on the material of Tuvinian texts of different periods). Linguistic sources of the usage of bipredicative constructions (BPC) in the texts comprise all types of composite sentences: compound, complex and sentences with multiple predicative lines. The author of the paper has revealed structural types of the AC of the predicate which form dictum/dictum, modus/dictum and relative BPC. Texts of fiction mostly contain monofinite BPC that represent the basis of the syntax of the composite Tuvinian sentence. The common feature of the texts of the early period is considered to be the existence of biverbal AC of adverbial and participial types, as well as the composition of auxiliary verbs in the system of which there is the verb iydar ‘to send’. Fiction texts of Tuvinian literature of different periods are characterized by the tendency to continue using BPC.