Past tense incomplete verb and present tense incomplete verb in Persian

Abstract

           Nowadays, the study of language in linguistic aspect is one of the fastest growing areas in linguistics.  The possibilities of enriching the vocabulary in the study of verb vocabulary are enormous.  When studying verb tenses, attention should be paid to the formation of the means that form tense forms.  Because practical exercises on the formation of contemporary forms are very important for the development of speech, the development of creative thinking, the formation of skills of correct and concise expression of thought.