What is the use of ago?

Related questions

1. What's the difference between present perfect and present perfect continuous?
2. What are the forms and functions of present perfect tense?
3. How do we use present perfect tense?
4. What is perfect past tense with example?
5. What is the structure of present perfect tense?
6. When present perfect tense is used?
7. What are the rules of present perfect tense?
8. What is past tense and types?
9. What is perfect tense in English?
10. Does present perfect tense?

Tags

1. #present
2. #tense
3. #expression
4. #perfect
5. #before
6. #count
7. #moment