You drove too fast. You caused an accident	If you hadn't driven too fast, you wouldn't have caused an accident
I don't have a lot of patience. I can't be a teacher	If I had a lot of patience, I could be a teacher
There was dense fog. We didn't climb to the top of the mountain	If there hadn't been dense fog, we would have climbed the top of the mountain
I don't finish reports on time. My boss is angry with me	If I finished reports on time, my boss wouldn't be angry with me
She argued with my boss. She was fired	If she hadn't argued with my boss, she wouldn't have been fired
He left the window open. His house was burgled	If he hadn't left the window open, his house wouldn't have been burgled
He neglects his girlfriend. She cheats on him	If he didn't neglect his girlfriend, she wouldn't cheat on him
She forgot to call her friend on his birthday. He got really upset	If she hadn't forgotten to call her friend, he wouldn't have got really upset
I didn't book a table in a restaurant. We had to wait for a free table	If i had booked a table in a restaurant, we wouldn't have waited for a free table
She spends too much money. She doesn't have much savings	If she didn't spend too much money, she would have much savings