Wishes about the Present and the Future

Wish + Past Simple:
We use it to express that we want a situation in the present or future to be different.

I wish I spoke German. -- I don't speak German.
I wish I had a big house. -- I just a small one.
I wish I was in London. -- I'm in another city.                                                                                                Future: I wish it was the weekend tomorrow. -- It's still Tuesday.

Wish + Past Continuous:
We use it to express that we want to be doing a different action in the present or in the future.

I wish I was watching my favorite series now. -- I'm waiting to see the doctor.
I wish it wasn't raining. -- It is raining.
Future: I wish you weren't leaving tomorrow. -- You are leaving tomorrow.

Wish + Would - Infinitive: This is used to express impatience, annoyance or dissatisfaction with a present action. You are complaining about what is happening at the moment. 
I wish you would stop singing. (You are singing very badly and it is annoying me.)
I wish it would stop raining.  (It's raining a lot and I want to go to the beach.)


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Wishes About the Past

Wish + past perfect: It is used to express a regret, or that we want a situation in the past to be different.

I wish I hadn't drunk so much. -- I drank too much.
I wish he'd brought the homework. --  He didn't.
I wish I had studied harder to the test. -- I didn't studied enough and I failed.


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