Fulfill the exercises paying attention to verbs to be and to have, there + can find grammar review for theses and other rules in supplementary files.to be construction, pronouns, numerals and degrees of comparison. you i. read the sentences. put them in past and future tenses. transform them into interrogative and negative forms. 1. victor is free in the evening. 2. john is in america. 3. i am very busy. 4. she is in the lecture. 5. the child is 10 years old. 6. this work is interesting. 7. the expedition is in africa. 8. this film is long. 9. my mother is at home. 10. the workers are at the factory. 11. the students are at the university. 12. the children are at school.

Here is the transformation of the sentences into Past and Future tenses, including their interrogative and negative forms. 1. Victor is free in the evening.

• Past Tense
  • Affirmative: Victor was free in the evening.
  • Interrogative: Was Victor free in the evening?
  • Negative: Victor was not (wasn't) free in the evening.
• Future Tense
  • Affirmative: Victor will be free in the evening.
  • Interrogative: Will Victor be free in the evening?
  • Negative: Victor will not (won't) be free in the evening.

2. John is in America.

• Past Tense
  • Affirmative: John was in America.
  • Interrogative: Was John in America?
  • Negative: John was not in America.
• Future Tense
  • Affirmative: John will be in America.
  • Interrogative: Will John be in America?
  • Negative: John will not be in America.

3. I am very busy.

• Past Tense
  • Affirmative: I was very busy.
  • Interrogative: Was I very busy?
  • Negative: I was not very busy.
• Future Tense
  • Affirmative: I will be very busy.
  • Interrogative: Will I be very busy?
  • Negative: I will not be very busy.

4. She is in the lecture.

• Past Tense
  • Affirmative: She was in the lecture.
  • Interrogative: Was she in the lecture?
  • Negative: She was not in the lecture.
• Future Tense
  • Affirmative: She will be in the lecture.
  • Interrogative: Will she be in the lecture?
  • Negative: She will not be in the lecture.

5. The child is 10 years old.

• Past Tense
  • Affirmative: The child was 10 years old.
  • Interrogative: Was the child 10 years old?
  • Negative: The child was not 10 years old.
• Future Tense
  • Affirmative: The child will be 10 years old.
  • Interrogative: Will the child be 10 years old?
  • Negative: The child will not be 10 years old.

6. This work is interesting.

• Past Tense
  • Affirmative: This work was interesting.
  • Interrogative: Was this work interesting?
  • Negative: This work was not interesting.
• Future Tense
  • Affirmative: This work will be interesting.
  • Interrogative: Will this work be interesting?
  • Negative: This work will not be interesting.

7. The expedition is in Africa.

• Past Tense
  • Affirmative: The expedition was in Africa.
  • Interrogative: Was the expedition in Africa?
  • Negative: The expedition was not in Africa.
• Future Tense
  • Affirmative: The expedition will be in Africa.
  • Interrogative: Will the expedition be in Africa?
  • Negative: The expedition will not be in Africa.

8. This film is long.

• Past Tense
  • Affirmative: This film was long.
  • Interrogative: Was this film long?
  • Negative: This film was not long.
• Future Tense
  • Affirmative: This film will be long.
  • Interrogative: Will this film be long?
  • Negative: This film will not be long.

9. My mother is at home.

• Past Tense
  • Affirmative: My mother was at home.
  • Interrogative: Was my mother at home?
  • Negative: My mother was not at home.
• Future Tense
  • Affirmative: My mother will be at home.
  • Interrogative: Will my mother be at home?
  • Negative: My mother will not be at home.

10. The workers are at the factory.

• Past Tense
  • Affirmative: The workers were at the factory.
  • Interrogative: Were the workers at the factory?
  • Negative: The workers were not at the factory.
• Future Tense
  • Affirmative: The workers will be at the factory.
  • Interrogative: Will the workers be at the factory?
  • Negative: The workers will not be at the factory.

11. The students are at the university.

• Past Tense
  • Affirmative: The students were at the university.
  • Interrogative: Were the students at the university?
  • Negative: The students were not at the university.
• Future Tense
  • Affirmative: The students will be at the university.
  • Interrogative: Will the students be at the university?
  • Negative: The students will not be at the university.

12. The children are at school.

• Past Tense
  • Affirmative: The children were at school.
  • Interrogative: Were the children at school?
  • Negative: The children were not at school.
• Future Tense
  • Affirmative: The children will be at school.
  • Interrogative: Will the children be at school?
  • Negative: The children will not be at school.

Would you like me to perform a similar transformation for sentences using the verb "to have"?