1. If he weren't weak and, he could walk.
2. If he weren't slow, he could win the race.
3. The students could hear him well if he didn't speak very quickly
4. If ny brother’s bicycle weren't broken, he wouldn't come home late.
5. If there weren't gravity, water wouldn't run down hill.
6. The room is so dark that we cannot find our books.
7. We wouldn't be sad if he weren't absent from the meeting.
8. I could do the test if I understood the lesson.
9. If that picture weren't high the boy could reach it.
10. If there weren't the pull of the earth, man wouldn't have weight.