Present Perfect vs Past Simple

1. Present Perfect Forms

1.1. Affirmative: Suject+ have/has+ past participle

1.2. Negative: Subject+ have/has+not+past participle

1.3. Questions: Have/Has+subject+past participle..?

2. Usage

2.1. Not finished: I have played tennis for ten years

2.2. Experience in general: I have been to Paris

2.3. Explanation why something is now: Peter is happy. He has passed his driving test

3. to introduce the experience. It doesn’t say when.

3.1. (many times, this week, yet, already, never, for, since, etc.)

3.2. HAVE: I, YOU WE, THEY HAS: HE, SHE

4. Past simple Forms

4.1. Affirmative: Subject+past forms

4.2. Negative: Subject+ did+not+ infinitive (without to)

4.3. Questions: Did+subject+ infinitive (without to)

5. Usage

5.1. Finished: I played tennis for ten years

5.2. One specific event: I bought this bag in Paris. It's very cheap there

5.3. Time is given: She came home at six o'clock

6. to give details. It says when

6.1. . (Last year, yesterday, last month, a week ago, etc.)