What is the difference between present perfect and perfect continuous?

Related questions

1. Will not have or will have not?
2. What is the difference between future perfect and future continuous?
3. How do you change a sentence into present continuous?
4. How do you use future perfect continuous?
5. What is the formula of future perfect continuous tense?
6. Could have should have would have?
7. What is meant by future perfect tense?
8. What is Rule of future perfect tense?
9. What are the rules of future tense?
10. Will the future passive form?

Tags

1. #difference
2. #situation
3. #action
4. #present
5. #between
6. #tenses
7. #finished
8. #necessarily
9. #about
10. #continuous
11. #tense
12. #perfect