нужно написать по 3 предложения на каждый тип времен:1. if+present simple

1. If you meet Tom, tell him about our proposition.
2. If you see Mary, give her my telephone number.
3. If you dont see Mary at home, leave her a note.
4. If the weather is fine tomorrow, we will go for a walk.
5. If my mother buys tickets, we will go to the cinema tonight.
6. If you come to my place, I will show you my new bike.
7. If I were you, I would visit your grandparents.
8. If I had a lot of money, I would travel around the world.
9. If I knew English well, I would read books and magazines in original.
10. If he had done his homework, he wouldnt have got a bad mark last lesson.
11. If you had told me about your difficulties beforehand, I would certainly have helped you.
12. If you had called me, I would have met you at the station yesterday.