1. I don’t know whether I’ll go shopping tomorrow, it depends on the weather I won’t go shopping if it rains tomorrow

2. Tom’s parents hardly ever let him go out because he doesn’t study If Tom studied more, his parents would let him go out

3. When my grandfather lived he always gave me a lot of presents for my birthday If my grandfather lived, he would give me a lot of presents for my birthday

4. He should do more sport not to get too fat If he doesn’t do more sport, he’ll get/he may get too fat Unless…

5. I can’t go on holidays because I’m unemployed If I weren’t unemployed/ I had a job, I would go on holidays

6. I don’t have a yacht because I’m not rich If i were rich, I would have a yacht

7. If he passes/passed all the exams, he will go/would go on holidays to the Caribbean with his parents (he is quite likely to pass them) If he passes all the exams, he will go on holidays to the Caribbean with his parents

8. If he passes/passed all the exams, he will go/would go on holidays to the Caribbean with his parents (he often fails some subjects) If he passed all the exams, he would go on holidays to the Caribbean with his parents

9. We will/would invite John to the party if he comes/came back to Madrid these holidays (he often comes back for holidays) We will invite John to the party if he comes back to Madrid these holidays

10. We will/would invite John to the party if he comes/came back to Madrid these holidays (he very rarely comes back) We would invite John to the party if he came back to Madrid these holidays

11. You can’t drive in Spain states if you aren’t 18 You can’t drive in Spain unless you are 18

12. I won’t take the job if the pay is too low I’ll take the job unless the pay is too low

13. If it doesn’t rain, I’ll go cycling this afternoon I’ll go cycling this afternoon unless it rains

14. I’ll be angry if the bus isn’t on time I’ll be angry unless the bus is on time

15. You’ll sleep better if you don’t drink coffe at night You’ll sleep better unless you drink coffee