Write 15 sentences in Present Progressive and Present Perfect tenses, and show how to change each into affirmative, negative, interrogative, and negative interrogative forms.

Here are 15 sentences (7 Present Progressive and 8 Present Perfect) and how to change each into 4 forms:

Present Progressive Tense

• Structure: Subject + am/is/are + verb(-ing) + object/complement

1. Sentence: I am reading a book.

   • Affirmative: I am reading a book.
   • Negative: I am not reading a book.
   • Interrogative: Am I reading a book?
   • Negative Interrogative: Am I not reading a book?

2. Sentence: She is playing.

   • Affirmative: She is playing.
   • Negative: She is not playing.
   • Interrogative: Is she playing?
   • Negative Interrogative: Is she not playing?

3. Sentence: They are going to school.

   • Affirmative: They are going to school.
   • Negative: They are not going to school.
   • Interrogative: Are they going to school?
   • Negative Interrogative: Are they not going to school?

4. Sentence: He is cooking dinner.

   • Affirmative: He is cooking dinner.
   • Negative: He is not cooking dinner.
   • Interrogative: Is he cooking dinner?
   • Negative Interrogative: Is he not cooking dinner?

5. Sentence: We are watching a movie.

   • Affirmative: We are watching a movie.
   • Negative: We are not watching a movie.
   • Interrogative: Are we watching a movie?
   • Negative Interrogative: Are we not watching a movie?

6. Sentence: The birds are singing.

   • Affirmative: The birds are singing.
   • Negative: The birds are not singing.
   • Interrogative: Are the birds singing?
   • Negative Interrogative: Are the birds not singing?

7. Sentence: You are learning English.

   • Affirmative: You are learning English.
   • Negative: You are not learning English.
   • Interrogative: Are you learning English?
   • Negative Interrogative: Are you not learning English?

Present Perfect Tense

• Structure: Subject + has/have + past participle (V3) + object/complement

8. Sentence: I have finished my work.

   • Affirmative: I have finished my work.
   • Negative: I have not finished my work.
   • Interrogative: Have I finished my work?
   • Negative Interrogative: Have I not finished my work?

9. Sentence: She has eaten food.

   • Affirmative: She has eaten food.
   • Negative: She has not eaten food.
   • Interrogative: Has she eaten food?
   • Negative Interrogative: Has she not eaten food?

10. Sentence: They have gone home.

    • Affirmative: They have gone home.
    • Negative: They have not gone home.
    • Interrogative: Have they gone home?
    • Negative Interrogative: Have they not gone home?

11. Sentence: We have visited Paris.

    • Affirmative: We have visited Paris.
    • Negative: We have not visited Paris.
    • Interrogative: Have we visited Paris?
    • Negative Interrogative: Have we not visited Paris?

12. Sentence: He has written a letter.

    • Affirmative: He has written a letter.
    • Negative: He has not written a letter.
    • Interrogative: Has he written a letter?
    • Negative Interrogative: Has he not written a letter?

13. Sentence: You have seen that movie.

    • Affirmative: You have seen that movie.
    • Negative: You have not seen that movie.
    • Interrogative: Have you seen that movie?
    • Negative Interrogative: Have you not seen that movie?

14. Sentence: The cat has caught a mouse.

    • Affirmative: The cat has caught a mouse.
    • Negative: The cat has not caught a mouse.
    • Interrogative: Has the cat caught a mouse?
    • Negative Interrogative: Has the cat not caught a mouse?

15. Sentence: The train has arrived.

    • Affirmative: The train has arrived.
    • Negative: The train has not arrived.
    • Interrogative: Has the train arrived?
    • Negative Interrogative: Has the train not arrived?