Abstract
This article is an attempt to define the classification criteria of phraseological units, whichhave a phraseologically linked formative in their structure. In this article we come up with therespective classification criteria according to the features of the structure and the semantics of thedetermined phraseologisms. Within this research phraseological units with the phraseologicallylinked formative are classified according to grammatical, structural-semantic and semantic criteria,in accordance with the national specificity, which is characteristic of these phraseologisms. Bycombining different classification criteria we attempted to determine the nucleus and the peripheryof the phraseological units with the phraseologically linked formative