Have been doing have done?

Related questions

1. Would and could grammar?
2. How far have we come along?
3. Can use in future tense?
4. Has been done?
5. Would usage in English grammar?
6. Should have or should had?
7. How this came to be meaning?
8. Should we or shall we?
9. How do you use while and while in a sentence?
10. Could is used for?

Tags

1. #represents
2. #present
3. #completed
4. #thing
5. #progressive
6. #ongoing
7. #tense
8. #doing
9. #means
10. #perfect
11. #continuous
12. #something
13. #voice
14. #action
15. #active