Using cognitive-conceptual analysis, the variant of contensive correlation in verb formation of the English phrasal verbs and Russian synthetic perfective verbs with prefixes are considered. Notional (conceptual) synonymity of the role of the corresponding English postpositions and Russian prefixes in this process of perfective verb formation is analyzed.

Purpose. Studying verb formation typology of the English postpositions and Russian prefixes of the perfective verbs.

Methodology. Cognitive-conceptual description of the functions of the postpositions and prefixes in analytical and synthrtical verb formation.

Practical implications. Teaching and science researching practices of the English and Russian languages.