1. It has been raining for eleven hours.
2. It has been raining for six hours.
3. It has been raining for nine hours.
4. It has been raining for one hour.
5. It has been raining for eight hours.
6. It has been raining for ten hours.
7. It has been raining for four hours.
8. It has been raining for two hours.
9. It has been raining for twelve hours.