Unreal past

I wish I _________ (be) with you in Switzerland right now.

It's high time you ______ (start) thinking about setting up your own business.

It's high time I _________ (leave).

I'd rather you _________ (not smoke) in here.

I'd really rather you _______ (not let) the kids drop bits of pizza all over my new sofa.

Don't you think it's time you ____________ (tell) Andrea the truth?

If only Sam _______ (know) how I feel about him!

We'd rather you ________ (not lend) Brenda any more money - she's got to learn not to spend what she doesn't have.

It's high time I ________ (go) to bed. I have an early appointment tomorrow morning.