2.If I didn't get to school late every morning, my teacher wouldn't always be angry with me.
3.If I hadn't left my wallet at home, I could have bought the new trainers.
4.if I didn't have a sore throat, I would have sang in the school choir.
5.if it wasn't raining, we could have gone to the park.
6.if our football team had played well, it wouldn't have lost the match.
Вроде так ))