What does present perfect progressive mean?

Related questions

1. Where do we use ago before and?
2. What is the rule of present indefinite tense?
3. What is the past perfect progressive?
4. How do you use present perfect?
5. What is a progressive verb example?
6. What is past progressive tense with examples?
7. What is the formula for present perfect continuous tense?
8. What is progressive example?
9. Is ago an adverb of time?
10. What does the present perfect tense express?

Tags

1. #action
2. #relevance
3. #indicates
4. #still
5. #continuous
6. #continues
7. #beating
8. #finished
9. #tense
10. #present
11. #point
12. #perfect
13. #running
14. #current
15. #limited
16. #usually
17. #happen
18. #progressive
19. #initiated
20. #duration
21. #heart