Why present perfect tense is used?

Related questions

1. How do you use past perfect continuous?
2. What is the present perfect tense of teach?
3. What is the structure of the present perfect continuous tense?
4. What are some examples of present perfect tense?
5. Is Present Perfect a past tense?
6. What are present perfect tense examples?
7. What are perfect tenses in English?
8. Where present perfect tense is used?
9. What is rule of present perfect continuous tense?
10. What is the difference between present perfect and present perfect continuous?

Tags

1. #homework
2. #happened
3. #exact
4. #present
5. #makes
6. #important
7. #something
8. #participle
9. #tense
10. #perfect
11. #finished
12. #describe