посчитайте . Нужно очень быстро

There is nobody in the house.

There isn't anybody in the house.

We must bring nothing to the party.

We musn't bring anything to the party.

He's got nobody to play with.

He hasn't got anybody to play with.

They've got nothing to discuss.

They haven't got anything to discuss.

There is nothing in the lunch box.

There isn't anything in the lunch box.