Why we use past perfect continuous tense?

Related questions

1. What is the difference between past perfect and past participle?
2. What is the example of past perfect continuous?
3. What is structure of past perfect tense?
4. What is the past perfect simple in English?
5. What is past perfect tense formula?
6. How do you use past perfect?
7. What is the rule of past perfect continuous?
8. What is the formula of past perfect continuous?
9. Are you slept?
10. How do you change past simple to Past Perfect?

Tags

1. #working
2. #continuous
3. #simple
4. #company
5. #stative
6. #perfect
7. #james
8. #continues
9. #action
10. #present
11. #often
12. #point
13. #rather
14. #verbs
15. #tells