Wish + tense agreement + subordinate clause

They are all correct, and are not exceptional in terms of the time relations among the clauses.

So you've got a 2 clause unreal past structire with wish> I wish I did, I asked, I bought what... and I wish I'd known, I'd sold, I'd asked what... and then we just use tenses normally?

I wish .... usually introduces something that is not (yet) true. That something can be present time or past.

I wish I knew... (present)
I wish I had known ... (past).

Know is then followed by an object. That object can be a clause. I think that you can contrive almost any tense for the dependent object clause.

eg.

I don't know who he knows. I wish I kn

Thanks a lot, AlpheccaStars !

just a couple of things

I wish I'd asked what was wrong. - past
I wish I'd found out what he would do about it. - past+ future in the past
I wish I worked at the company my dad does - present
I wish we talked what we can do about the problems we're facing more. - present

I wish I'd found out what he will do - wrong

So..."I wish you are here" is gramatically wrong. But "I hope you are here" is correct.
but is "I wish you good luck" wrong or correct?

CharmYouSo..."I wish you are here" is grammatically wrong.

No; it is semantically wrong.

CharmYouBut "I hope you are here" is correct.

Also wrong. The person is either here or absent and it should be obvious, so there no wishing or hoping is possible.

CharmYou is "I wish you good luck" wrong or corre

Yes.
I wish I'd found out what he would do in the case of a fire. (Hypothesis in the past)