1. If I had seen Ann, I would have told her about the party.
2. If he hadn't been tired, he wouldn't have stayed in.
3. If she hadn't left home late, she wouldn't have missed the bus.
4. If they had taken an umbrella, they wouldn't have got wet.
5. If we hadn't left the camera at home, we would have taken some photographs.
6. If she hadn't gone to the party, she wouldn't have met a lot of new people.
7. If the weather hadn't been great, we wouldn't have gone to the beach.