Primary Auxiliary Verbs

Examples :

1. I am an actor.
   I (am not) an actor.
2. You are happy.
   You (are not) happy.
3. He is tall.
   He (is not) tall.
4. She is my teacher.
   She (is not) my teacher.
5. It is good.
   It (is not) good.
6. This is a plant.
   This (is not) a plant.
7. That is a refrigerator.
   That (is not) a refrigerator.
8. We are colleagues.
   We (are not) colleagues.
9. They are brothers.
   They (are not) brothers.
10. These are tulip flowers.
    These (are not) tulip flowers.
11. Those are story books.
    Those (are not) story books.

Exercise – 23

Convert the sentences into negative based on “to be” verb in present tense :

1. I am a lecturer.
2. You are my teacher.
3. John is a pilot.
4. My sister is a designer.
5. The dog is fat.
6. We are relatives.
7. They are policemen.
8. Students are tired.
9. The film is good.
10. Dresses are attractive.