1. The lecture is very interesting but you have to go. – You say: I wish I didn't have to go.
2.You’ve taken up bungee jumping. Now you want to back out (отказаться). – You say: I wish I hadn't taken up bungee jumping.
3. You are at the party. You’re bored. – You say: I wish I weren't here now.
4. You got up very early and now you feel sleepy. – You say: I wish I hadn't got up so early.
5. You didn’t like the film you saw at the cinema yesterday. – You say: I wish I hadn't seen that film.
6. It’s raining. You don’t have your umbrella with you. You say: I wish I had taken my umbrella with me.