If I didn't have to help my parents, I could go to school concert

If I had enough money, I could buy a new mobile phone

If I didn't have so much homework, I could go out

If I had a fast computer, I could download more films

If I didn't do a lot of sport I wouldn't feel tired

1.If i hadn't had to help my parents, i would have gone to the school concert.

2. If i had had enough money, i would have bought a new mobile phone.

3. If i hadn't had so much homework, i would have gone out.

4. If i had had a fast computer, i would have download more films.

5. If i hadn't did a lot of sport, i woudn't have felt tired.