2. If I hadn't eaten too much last night, I wouldn't have felt sick. 3. If I hadn't cut my own hair, my friends wouldn't have laughed at me. 4. If I had studied hard, I wouldn't have failed my exams. 5. If I had remembered my girlfriend's birthday, she wouldn't have left me. 6. If I hadn't broken a window with my football, I wouldn't have had to spend all my money on a new one.