Question

perhaps he has not received that doctors Result yet ( use may) rewrite this

Answer 1

Hey mate here is your answer.


May be he had not receive result by doctors yet.

HOPE THIS ANSWER WILL HELPFUL FOR YOU.
Thanks.

Answer 2

He may not have received that doctor's result yet .

DETAILS :

The meaning of the sentence should not be changed.

The sentence has only undergone one change .

Perhaps changes to may be .

They have same meaning and hence the answer is legal .