Надо сделать предложения отрицательными, Помогите !!!
He helped me yesterday
She cleaned her room
They watched TV
Ann and Bob played chess
My sister cried yesterday
They closed the shop
Bob opened the box
The girls skipped yesterday
Her sister cooked dinner
We liked the film
Mr Brown lived in africa
The boys thanked their aunt
They finished their work
He stopped near the house
Ann listened to music

He did not/didn't help me yesterday.

She did not/didn't clean her room.

They did not/didn't watch TV.

Ann and Bob did not/didn't play chess.

My sister did not/didn't cry yesterday.

They did not/didn't close the shop.

Bob did not/didn't open the box.

The girls did not/didn't skip yesterday.

Her sister did not/didn't cook dinner.

We did not/didn't like the film.

Mr Brown did not/didn't live in Africa.

The boys did not/didn't thank their aunt.

They did not/didn't finish their work.

He did not/didn't stop near the house.

Ann did not/didn't listen to music.