Does present perfect tense?

Related questions

1. When present perfect tense is used?
2. What is past tense and types?
3. What is perfect tense in English?
4. What is perfect past tense with example?
5. How do we use present perfect tense?
6. What is the use of ago?
7. Is called past tense?
8. What is the structure of present perfect tense?
9. What are the rules of present perfect tense?
10. Is ago a preposition?

Tags

1. #tense
2. #between
3. #perfect
4. #participle
5. #present
6. #often
7. #regular
8. #either
9. #accompanying
10. #simple
11. #adverbial
12. #formed
13. #determined
14. #which
15. #irregular
16. #choice