Question

I ( not see ) a film since last January.
( Use the Present perfect tense of the verb
in the negative form )

Answer 1

I have not seen a film since last January.

Answer 2

⇒ I haven’t seen a film since last January. 

⇒ Explanation :-

Have seen is Present Perfect tense.

haven't seen is in negative form.

The present perfect tense :- This tense is used to indicate an action, which is just over or completed

Example :- He has eaten his lunch, he is not hungry now.

The verb is has eaten

has is the present tense and eaten shows that the action is complete or perfect.

The present perfect tense is made up of two verbs, the auxiliary verb and the main lexical verb.

Negative form :- Sentence carrying a negative idea or making assertion said to be a negative sentense.

Example :- Chiraag failed to understand the question.

In negative form :- Chiraag did not understand the question.