GRAMMAR WORKSHEET PRESENT PERFECTPositives, Negatives and QuestionsWrite the sentences below in the present perfect tense, 1. I saw o ponguin I have seen a penguin.2. Did thay eat breakfast? Have they eaten breakfast?3. Jennifer didn't finish her homework4. They met the president.5, No, we didn't6. Did Roberto visit Vancouver?7. Yes, he did8. Mrs. Smith didn't read the book.9. He was a teacher10. Were you in jail?​

1. I saw a penguin. (ОШИБКА) - I have seen a penguin. (ПРАВИЛЬНО)
You need to use the present perfect tense to show an action or event that happened in the past but has relevance to the present.

2. Did they eat breakfast? (ОШИБКА) - Have they eaten breakfast? (ПРАВИЛЬНО)
Use the present perfect tense to show an action that happened at an unspecified time before now.

3. Jennifer didn't finish her homework. (ПРАВИЛЬНО)
This sentence is already in the past tense and doesn't need to be changed.

4. They met the president. (ОШИБКА) - They have met the president. (ПРАВИЛЬНО)
Again, use the present perfect tense to show an action that happened at an unspecified time before now.

5. No, we didn't. (ПРАВИЛЬНО)
This sentence is already in the past tense and doesn't need to be changed.

6. Did Roberto visit Vancouver? (ОШИБКА) - Has Roberto visited Vancouver? (ПРАВИЛЬНО)
Use the present perfect tense to show an action that happened at an unspecified time before now.

7. Yes, he did. (ПРАВИЛЬНО)
This sentence is already in the past tense and doesn't need to be changed.

8. Mrs. Smith didn't read the book. (ПРАВИЛЬНО)
This sentence is already in the past tense and doesn't need to be changed.

9. He was a teacher. (ПРАВИЛЬНО)
This sentence is already in the past tense and doesn't need to be changed.

10. Were you in jail? (ОШИБКА) - Have you been in jail? (ПРАВИЛЬНО)
Use the present perfect tense to show an action that happened at an unspecified time before now.