Had worked or had been working?

Related questions

1. Was or were used with I?
2. Did you take or took?
3. Why is have used with I?
4. Has been working grammar?
5. Is been Grammar?
6. What is have had in grammar?
7. How do you use the word were in a sentence?
8. What is go in English grammar?
9. Why do we use was with I?
10. Has being or has been?

Tags

1. #uninterrupted
2. #advertising
3. #perfect
4. #answers
5. #company
6. #first
7. #latter
8. #continuous
9. #continuously
10. #tense
11. #working
12. #years
13. #means
14. #necessarily