1. He might not have skidded if the road hadn’t been icy. 
2. If we’d been going much faster, we might all have been killed. 
3. We couldn’t have afforded it if she hadn’t taken her credit card. 
4. If they’d searched more carefully, they might have found the jewels.  
5. Things would have been perfect if the engine hadn’t caught fire. 
6. If she’d gone by plane, it would have been simpler.  
7. We wouldn’t have crashed into him if he hadn’t braked suddenly. 
8. If I’d known what was going to happen, I probably wouldn’t have gone.   ---> Rem's Leaving New York teaches!