Should/Shouldn't
I regret selling my old Jaguar.
I shouldn't have sold my old Jaguar.
What a pity we didn't meet them last night!
I wish we had met him last night!
He should have called the lawyer.
He wishes he had called the lawyer.
Why didn't I see them? Now, it's too late.
I should have seen them.
I'm sorry I didn't phone you.
I wish I had phoned you.
I wish I hadn't married him!
I shouldn't have married him!
I regret having lied to him.
I shouldn't have lied to him.
You didn't speak to me at the party, I regret it.
I wish you had spoken to me at the party.
I wish I hadn't left the party so early.
I shouldn't have left the party so early.
Why on earth did I buy such a big car?
I shouldn't have bought such a big car!
Why didn't I check the gasoline before leaving?
I wish I had checked the gasoline before leaving.
You shouldn't have spoken so rudely to your father.
I wish you hadn't spoken so rudely to your father.