-I wish, if only-

"Wish" and "if only" are both used to talk about regrets (things that we would like to change either about the past or the present).

·About the present:

I wish/If only + subject + Simple Past

Ex: I wish I knew what to do.

·About the past:

I wish/If only + subject + Past Perfect

Ex: I wish I hadn't eaten all that chocolate.

·Wish/If only + would:
We use it to talk about something in the present that we would like to change- usually something that we find annoying.
Ex: I wish you would give up smoking. It's really bad for you.
We can only use wish + would to talk about things we can't change.



And now here you've got some exercises to practise it:
Exercises