We can't help him now.

• I wish we could help him now.
• If only we could help him now.

They didn't buy that house last year.

• I wish they had bought that house last year.
• If only they had bought that house last year.

My father won't work in that factory.

• I wish my father would work in that factory.
• If only my father would work in that factory.

John has lost his bike.

• I wish John hadn't lost his bike.
• If only John hadn't lost his bike.

Peter didn't arrive on time so he couldn't see that film.

• I wish Peter had arrived on time so that he could have seen that film.
• If only Peter had arrived on time so that he could have seen that film.

I will stay at home because I’m busy.

• I wish I didn’t have to stay at home because I’m busy.
• If only I didn’t have to stay at home because I’m busy.

It is raining heavily.

• I wish it weren’t raining heavily.
• If only it weren’t raining heavily.

She doesn’t join in the trip.

• I wish she would join in the trip.
• If only she would join in the trip.