Question

what is tense and its type

Answer 1

tense is a set of verb to indicate the time
there are three types of tenses
present
past
future

Answer 2

Tense refers to the time at which the action indicated by the verb takes place.
There are three types of tense are ---present tense, past tense and future tense.
Present tense expresses actions in the present time.
Past tense expresses actions in the past time.

Future tense expresses actions in the future time.