1.We didn't play football yesterday.
Dis you play football yesterday?
Yes,we did.NO,we didn't.
2.Nancy didn't go to school early yesterday morning.
Did Nancy go to school early yesterday morning?
Yes,she did.NO,she didn't.
3.They didn't sing any English songs yesterday.
Did they sing any Englsih songs yesterday?
Yes,they did.No,they didn't.