3)
1. You did not need to ought to eat potatoes.
2. You didn't have to stay in.
3. We should not have bought a new TV.
4. I wish I did not knew his phone number.
5. I did not have the car cleaned yesterday.
4)
1. Does needs to be cut.
2. Do not need to wash.
3. Needs to be adjusted.
4. Need to be fixed.
5. Needs to be replaced.
