conditionals and "wish" :
1- I'm not tired enough to go to bed yet. I wouldn't sleep if I went to go to bed.
2- if I were you, I wouldn't buy that coat. it's much too expensive.
3- I decided to stay at home last night. I would have gone out if I hadn't been so tired.
4-I wish I had a car. It would make life so much easier.
passive:
1- we were woken up by a loud noise during the night.
2-there's somebody walking behind us. I think we are followed.
3-the train was supposed to arrive at 11.30 but it was an hour late.
4-where did you have your hair cut ? which hairdresser did you go to?