The verb “be” has many forms. It’s difficult sometimes to recognize them all.

1. am
2. are
3. is
4. was
5. were
6. has been
7. have been
8. has been being
9. have been being
10. am being
11. are being
12. is being
13. can be
14. could be
15. will be
16. would be
17. may be
18. might be
19. should be
20. could have been
21. will have been
22. would have been
23. may have been
24. might have been
25. should have been

This is by no means an exhaustive list, but it gives one an idea of how many different forms “be” can take.