Tense-aspect and Negation in Yoruba and its dialects, there are controversial issues on it. This is not resolve till date due to the structure of Yoruba dialects. Trudgill (1994) stated that dialectologist needs to expose rules and systems that typical of a particular dialect. Which means to find the distinctive qualities of a particular dialect. In this paper we are going to examine the tense-aspect of some verbs in Ọ̀wọ̀ dialect which are rè, yú and gbànrè in the dialect. Some scholars thought that those verbs mentioned above are synonym of each other in our discussion, they believe that. they can replace each other in a sentence. This paper will also reveal that they are not synonymous words. One of these verbs can be align with negation marker while the remaining two are not; in any sentence that the other two co-occur with negation marker the sentence is not grammatical in the dialect. The paper will reveal how the verb gbànrè and rè cannot be negated in any sentence in the dialect. The paper will also show how the verbs analyse the past, present and the future as is in English Language; go, gone and went. Not only the pronouns inflected tense and aspect but the verbs always choose its subject pronoun to inflected tense-aspect in the dialect.