1. If we don't hurry, we will miss the bus
2. If I had the keys I could get into the house
3. If you don't speak slowly, he can't understand what you mean
4. If we we keep our environment clean, we will enjoy a healthy life
5. If she knew the answer, she could tell you
6. I could go to the beach if I were free today
7. Had I not fogottem to take my rain ocat with me, I wouldn't have got wet
8. Had it not rained heavily, the watch wouldn't have been cancelled
9. If it hadn't been for your help, I would have failed
If you hadn't helped me, I would have failed
Had it not been for your help, I would have failed