The present
Wish/if only + a past form is used when we want to talk about a situation now that we would like to change
I wish I studied more when I was younger.
If only people took more care of the environment.
You can use would alongside wish, to show announce.
I wish he would work a little harder.
The past
Wish/if only + a past perfect form is used if we want to talk about a situation we want to change in the past.
I wish had spoken with him while he was there.
If only they’d ran a little more in training.
The future
We use I hope to talk about things we want to happen in the future.
I hope win on the weekend