Choose the correct preposition

1. I wish I talked had talked talk to him yesterday.
2. I need help badly. If only you can could either could be used help me.
3. My old car often breaks down. I wish I buy bought had bought a new car.
4. He didn't pass the exam. If only he works worked had worked hard.
5. She was absent. I wish she attends attended had attended the conference.
6. What a beautiful house! I wish I have had had had a house like this one.
7. I wish I was were either could be used rich. I would buy a farm and enjoy the calm of the countryside.
8. They had that bad accident because they were careless. If only they are were had been more careful.
9. We saw the film. I wish you see saw had seen it with us. It was an amazing evening.
10. I like traveling around the world. If only I have had had had time to realize my dream.