12. he has punished by his mother.

=> I wish he hadn't punished by his mother.....

13.they won't come here again.

=> i wish..they would come here again.......

14.he won't go swimming with me.

=>i wish...he would go swimming with me......

15.we didn't undersyand them.

=>we wish.......we had understood them.....

16.i will be late for school.

=>i wish....i wouldn't be late for school......

17.the bus was late today.

=> i wish........the bus hadn't been late today........

18.she doesn't like this place.

=> i wish.....she liked this place......

19.these students talked too much in class.

=> i wish...these students hadn't talked too much in class......

20.i can't play basketball.

=> i wish.....i could play basketball....