Question

I( not hear) from him for a year correct the tense ​

Answer 1

I have not heard from him for a year.

Explanation:

• Has, have, has, are helping verbs that are added before a noun.

• Have is used for the pronouns and plural nouns.

• Whereas Has is used for the third singular person.

• Had is used in the past tense to show the completeness of action.  

• Been is added with the three of them i.e.has, had, have, to show the continuity of action.

Answer 2

I haven't heard from him for a year..

Hope it help u..☺♡