Semantic features of the verb. The verb possesses the grammatical meaning of verbiality - the ability to denote a process developing in time.
Morphological features of the verb. The verb possesses the following grammatical categories: tense, aspect, voice, mood, person, number, finitude and temporal correlation.
Syntactic features. The most universal syntactic feature of verbs is their ability to be modified by adverbs. The second important syntactic criterion is the ability of the verb to perform the syntactic function of the predicate.