What is the difference between past perfect tense and past perfect continuous tense?

Related questions

1. What is the formula of past simple tense?
2. What is the difference between past and present perfect tense?
3. What are the example of tenses?
4. What is past tense examples?
5. Has decided or had decided?
6. What is the past perfect tense of run?
7. Has given me or had given me?
8. What is perfect aspect example?
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10. What is the past perfect tense of start?

Tags

1. #pronouns
2. #continuous
3. #noticed
4. #putting
5. #formed
6. #tense
7. #subject
8. #difference
9. #singular
10. #between
11. #perfect
12. #tenses