Question

what are the finite and non finite verb

Answer 1

Most nonfinite verbs found in English are infinitives, participles and gerunds. (They sometimes are called verbals, but that term has traditionally applied only to participles and gerunds.) ... One or more nonfinite verbs may be associated with a finite verb in a finite clause: the elements of a verb catena, or verb chain.

Answer 2

Finite verb forms show tense, person and number (I go, she goes, we went, etc.):

She was waiting in the room before he came in.

Does your brother know my brother?

The night before he had to leave, they saton the small sofa in the living-room and looked at old family photos.

Aren’t you a bit late?

Non-finite verb forms do not show tense, person or number. Typically they are infinitive forms with and without to (e.g. to go, go), -ing forms and -ed forms (e.g. going, gone):

She tiptoed round the house so as not to wake anyone.

You need to paint the whole cupboard, starting from the bottom.

hope it helped u