1. The pond is not frozen. If it (be) frozen, we (go) ice skating today.

2. You always come to work late. If you (come-negative) late, the boss (give) you a raise.

3. Mark doesn’t have a job, so he can’t buy a car. He (be) able to buy a car if he (have) a job.

4. Karen doesn’t know how to drive. If she (know) how to drive, she (buy) a car.

5. Nick never has free time. If he (have) free time, he (go) out with his friends.

6. I don’t know Joe’s telephone number. If I (know) his number, I (invite) him to our party.

7. I don’t like pizza, so I hardly ever eat it. I (eat) it more often if I (like) it.

8. Today is Friday. If today (be) Saturday, I (have-negative) to work.

9. You never pay attention in class. If you (pay) attention, you (get) better grades.

10. John is always tired because he goes to bed very late. If he (go-negative) to bed so late, he (be-negative) tired all the time.

11. Margaret loves sweets, and she eats them all the time. Margaret (eat-negative) sweets all the time if she (like-negative) them so much.

12. I am not you. If I (be) you, I (buy) a new car.