Question

he delivers lecture at 9 o clock make it negative​

Answer 1

Answer:

He does not delivered her lecture at 9 o clock.

Answer 2

See, there are two instructions for making a sentence negative. They are :

(i) Making whole sentence negative changing the meaning.

(ii) Making whole sentence negative without changing meaning.

If we proceed with case (i), then the answer is :

He does not deliver lecture at 9 O' clock.

If we proceed with case (ii), then the answer is :

It is not that he does not deliver lecture at 9 O' clock