1. Form interrogative
1.1. Structure:
1.1.1. Have + Subject + Past participle + Object
1.1.1.1. Example:
1.1.1.1.1. Have you visited new york?
1.2. Conjugating
1.2.1. The have / Has is put at the beginning when a question is asked.
1.2.1.1. Have you
1.2.1.2. Have I
1.2.1.3. Has he/she
1.2.1.4. Have we
1.2.1.5. Have they
2. When we use it?
2.1. 1.-To describe an experience.
2.1.1. Example:
2.1.1.1. I have travelled whe world.
2.2. 2.-To describe a change over a period of time.
2.2.1. Example:
2.2.1.1. Andrew has grown since the last time I saw him.
2.3. 3.-To describe accomplishments.
2.3.1. Example:
2.3.1.1. Man has been to the moon.
2.4. 4.-A continuing action that started in the past.
2.4.1. Example:
2.4.1.1. We have been in a relationship for 3 months.
3. Form Affirmative
3.1. Structure:
3.1.1. Subject + Have + Past participle + Object
3.1.1.1. Example:
3.1.1.1.1. I have cooked dinner.
3.2. Conjugating
3.2.1. I have
3.2.2. You have
3.2.3. He/She has
3.2.4. We have
3.2.5. They have
4. Form Negative
4.1. Structure:
4.1.1. Subject + Have + Not + Past participle + Object
4.1.1.1. Example:
4.1.1.1.1. John has not fixed the sink.
4.2. Conjugating
4.2.1. I have not
4.2.2. You have not
4.2.3. He/She has not
4.2.4. We have not
4.2.5. They have not
4.2.6. We can contract the negative form of the auxiliary verb have.
4.2.6.1. Example:
4.2.6.1.1. Haven`t , Hasn`t