PRESENT PERFECT SIMPLE:

1. I, You, We, They: Have + Pronoun + Past participle + ?

2. GRAMMAR

2.1. Affirmative:

2.1.1. I, you, we, they: HAVE

2.1.2. He, She, It: HAS

2.2. Negative:

2.2.1. I, You, We, They: HAVE NOT

2.2.2. He, She, It: HAS NOT

2.3. Interrogative:

2.3.1. He, She, It: Has + Pronoun + Past participle + ?

3. USE

3.1. Actions that still continue

3.2. Finished actions

3.3. Experiences

3.4. Habits

4. EXAMPLE

4.1. Pronoun + Have/Has + Past Participle

4.2. Affirmative: I have sung

4.3. Negative: She has not sung

4.4. Interrogative: Have we sung?

5. Itzel A. Vallejo Ríos