1. If Peter prepared his lessons well, he wouldn't get bad marks.
2. If he had enough qualifications, he would apply for the job.
3. If this car wasn't expensive, we would buy it.
4. If they had enough time, they could do me a favor.
5. If I had a spare ticker, I would take you to the concert.
6. If he could park near his office, he would come by car.