USE: We use PRESENT PERFECT SIMPLE to talk about:
1) The action which has happened in the past and continue until now.
Example:
- I have learned English for three years.
- He has become a doctor since 2009.
- Jame has stopped working for two years until now.
2) The action that happened in the past, but the result is in present.
Example:
- We have built a house for our children.
- Michael has written a letter to his friend in
- I have made a company.
3) The action which has just finished at the moment of speaking (recent past action).
Example:
- John has just arrived home this morning.
- We have eaten rice at the moment.
- They have just finished work now.
FORMULA
Positive Sentence:
| Subject + have/has + past participle + object/complement |
Example:
- They have gone home now.
- A lot of people have moved their houses.
- Jany has arranged his office today.
Negative Sentence:
| Sub + have/has + not + past participle + obj/comp |
Example:
- They have not been in
- The global economy has not recovered yet.
- The environment problems have not completely solved.
Question:
| Have/Has + sub + past participle + obj/comp ? |
Example:
- Has she gotten married?
- Have you changed your work?
- Have you heard the information about our friends?
