English * * * has 16 tenses, which are divided into simple present tense (do), simple past tense (did), simple future tense (will do), present continuous tense (is/am/are do), past continuous tense (was/were do) and future continuous tense (which can be used interchangeably with simple future tense and will be do).

Had done, which occurs before the action in the past tense), will have done, have/ has done, will always do, past tense and future tense (will do), past and future continuous tense (will do), past and future perfect tense (will do), past and future perfect tense (will always do) and so on.

Extended material: Tenses are verb forms, and different tenses are used to express different times and ways. It is a verb form that expresses behavior, action and state under various time conditions. English has 16 tenses.

In grammar, tenses or tenses indicate the relationship between the time when an action occurs and the time when it is spoken. Generally, it can be divided into past tense, present tense and future tense, and it is usually used together with the progressive tense and the perfect tense indicating the progress or termination of the action.

Tense, together with mood, voice, aspect and verb form, can show at least five grammatical features.

Some languages do not use tenses, such as analytical Chinese, but when necessary, they are assisted by time adverbs. In some languages, such as Japanese, the morphological changes of adjectives can express time information and have time attributes similar to verbs. In some languages, such as Russian, a word can express tense and aspect.

References:

Baidu Encyclopedia-Detailed Explanation of English Tenses