Выбрать в скобках правильную форму

We (would have gone/would go/will go) for a ride if the weather is fine.

If you had gone to bed earlier yesterday, you (will be/wouldn't have been/would have been) late to school.

If I had more free time, I (would have gone/would go/will have gone) to the mountains this weekend.

If I had known earlier, I (would help/will help/would have helped) you.

If you pass your exam well, I (will bought/would have bought/will buy) you a car.