Stories We Like: A Guide to the Comma
An inflectional (see inflection) form of verbs; it expresses the time at which the action described by the verb takes place. The major tenses are past, present, and future. The verb in “I sing” is in the present tense; in “I sang,” past tense; in “I will sing,” future tense. Other tenses are the present perfect (“I have sung”), the past perfect (“I had sung”), and the future perfect (“I will have sung”).