1. could, would start
2. had, would go
3. didn't study, would learn
4. wouldn't be, didn't be
5. would be, didn't have to
6. wouldn't be, had.
1. If i had enough money, I would/could buy a new mobile.
2. If I weren't shy, I would go to the party.
3. If he understood the question, he would answet it.
4. If she had the right books, she would/could do her homework.
5. If they didn't eat fast food every day, they wouldn't be fat.
6. If i knew his number, would/could text him.