1. I have to study hard.
-> I wish I didn't have to study hard.
2. We had a lot of homework yesterday.
-> I wish we hadn't had a lot of homework yesterday.
3. It is raining heavily.
-> I wish it weren't raining heavily
4. It was cold last night..
-> I wish it hadn't been cold last night.
5. They work slowly.
-> I wish they didn't work slowly.
5. She doesn't join in the trip.
-> I wish she joined in the trip.
6. I am not good at English.
-> I wish I were good at english.
7. He studies badly.
-> I wish he didn't study badly.
8. He doesn't like playing sports.
-> I wish he liked playing sports.
9. I don't have a computer.
->I wish I had a computer.
10. Today isn't a holiday.
-> I wish today were a holiday.
11. I can't sing this song.
-> I wish I could sing this song.