They play games, ? they don't play games, ? he is playing games now, ? he is not play games now, ? she didn't basketball yesterday, ? we will go to school tommorow, ? сделать разделительными вопросами.

They don't play games, do they? 
He is playing games now, isn't he?
He is not playing games now, is he ?
She didn't play basketball yesterday, did she ?
We will go to school tommorow, won't we?