1. The pool wasn’t open yesterday. If it (be) open, we (go) swimming.
2. You came to work late. If you (come-negative) late, the boss (get-negative) angry.
3. Mark didn’t have a job last year, so he couldn’t buy a car. He (be) able to buy a car if he (have) a job.
4. Karen didn’t know how to drive last year. If she (know) how to drive, she (buy) a car.
5. Nick didn’t have any free time last weekend. If he (have) some free time, he (go) out with his friends.
6. I didn’t remember Joe’s telephone number. If I (remember) his number, I (invite) him to our party.
7. Joe ate too much last night, and he got sick. If he (eat-negative) so much last night, he (get-negative) sick.
8. The bank was closed yesterday. I couldn’t make a deposit. If the bank (be) open yesterday, I (make) a deposit.
9. You didn’t pay attention in class yesterday. If you (pay) attention, you (fail-negative) the test.
10. John was tired this morning because he went to bed very late last night. If (go) to bed early, he (be-negative) so tired this morning.
11. Margaret wasn’t careful, and she lost her credit card. If Margaret (be) more careful, she (lose-negative) her credit card.
12. Bob was driving very fast last night. He had an accident. If he (drive-negative) so fast, he (get-negative) into an accident.