Debatability of the Ukrainian verb’s grammatical categories

The central concept of the morphological terminology is a grammatical category. The verb has an extensive system of grammatical categories: aspect, transitivity- intransitivity, voice, mood, tense, person, number, gender etc. The relevance of the research determines the need for a new understanding of the terminology of morphology, taking into account the priority cognitive approach of analysis, the need for new searches for the description of the central part of the language in the morphological system – the Ukrainian verb. The purpose of the article is to propose a description scheme of the grammatical categories of the verb, which will illustrate the debatable points of the grammatical categories of the Ukrainian verb. Research methods. In the article as the main general scientifi c methods of analysis and synthesis are used, as well as linguistic – descriptive, structural methods and method of component analysis. Conclusions. The category of aspect has features of word-infl ected and non-infl ected categories. In the class of adverbs, aspect and transitivity- intransitiveness infl uence the creation of adverbial forms. Scholarly discussions arise around a number of key issues of the voice category. Regarding the content of the voice category, some linguists believe that the content of the voice category is the relation of the action to the subject, others – the relation of the action to the subject and the object. In science, the question regarding the quantitative manifestation of the voice category is undefi ned. In Ukrainian linguistics, the prevailing opinion is that the voice category is a two-membered grammatical category, but some scientists consider the state category to be three- membered.