How many tenses are there in English? How many aspects are there?

Tenses and aspects work together to form the verb tenses in English. Tenses tell us about the timeline: present, past and future. Aspects, on the other hand, describe how those events take place: in simple form, perfect progressive, perfect progressive form.

Therefore there 12 verb tenses in English:

Present simple tense, present progressive, present perfect and present perfect progressive.

Past simple, past progressive, past perfect, and past perfect progressive.

Future simple, future progressive, future perfect and future perfect progressive.