Proceedings of young scientists and specialists of the Samara UniversityProceedings of young scientists and specialists of the Samara University2782-2982Samara National Research University10303Functioning of one-part sentences in child's speech at the early stages of developmentChernyavskayaNadezhdaChia20081@yandex.ruMinkoAnastasia Mikhailovnaminko.nastya@yandex.ru190120231(20)2905202229102022Copyright © 2023, Proceedings of young scientists and specialists of the Samara University2023<p>This work is a study of the patterns of formation and functioning of one-part constructions in the ontogenesis of a child's speech ability. It is established that all the main types of one-part sentences are formed in children at the early stages of language and cognitive development at the age of 2 to 3 years. It was found that the first to appear in the speech of children are definitely personal (with a predominance of incentive sentences) and impersonal constructions, which indicates the relevance of the expression of the semantics of inducement and necessity for the child. A little later, vaguely personal and generically personal sentences appear in children's speech, the content of which reflects not personal, everyday, but collective, social experience. The early appearance and active use of one-part sentences confirms the importance of these syntactic models for everyday communication and their universality for denoting an action regardless of its subject.</p>онтолингвистика, онтогенез, когнитивное развитие, детская речь, односоставные конструкцииontolinguistics, ontogenesis, cognitive development, child's speech, one-part sentences