Abstract
The article in question deals with the comparative analysis of the semantico-syntactic structure of the non-elementary sentence with Ukrainian Participle and French Gerund from the standpoint of the second predicate functioning. It has been confirmed that the secondary predication in a simple non-elementary sentence structure is fulfilled while participation of three main components: primary predicate, subject and secondary predicate. The main second predicate semantic types as well as the factors and preconditions of the secondary predication realization have been distinguished and outlined