1. If it rains, I will stay at home.
2. If the weather is not fine, I will stay at home.
3. You will fall ill if you do not wear warm clothes.
4. Jack won't miss the train if he gets up early.
5. After mother irons my blouse, I will put it on.
6. If Helen wears this fur coat every day, it will become dirty soon.
7. After the clock strikes 12, the New Year will come.
8. Write to me when you arrive in Brussels
9. I will buy a new mobile if I win a lottery
10. As soon as he arrives, he will do it
11. Just sit here till I come.