What is the correct plural form of roof?

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Tags

1. #common
2. #secondary
3. #english
4. #analogy
5. #varieties
6. #occasionally
7. #irregular
8. #plural
9. #rooves
10. #hooves
11. #enough
12. #other
13. #plurals
14. #appears
15. #roofs
16. #still
17. #considered
18. #standard