Grammar worksheet focusing on the present perfect tense with example sentences and practice questions.

Task Overview:

The task requires you to answer questions using the Present Perfect Tense. The Present Perfect Tense is formed using the auxiliary verb "have" or "has" followed by the past participle of the main verb. It is used to describe actions that have been completed at some point in the past and may have a connection to the present.

Instructions:

- Use the Present Perfect Tense to answer the questions.
- Follow the given cues (Yes/No) for each question.

Solution:

#### Question 1:
Have you finished your homework yet?
(No)
Answer: No, I haven't finished my homework yet.

#### Question 2:
Has Peter written the letter yet?
(Yes)
Answer: Yes, Peter has already written the letter.

#### Question 3:
Have you made the dinner yet?
(Yes)
Answer: Yes, I have already made the dinner.

#### Question 4:
Have they put the books back on the desk yet?
(No)
Answer: No, they haven't put the books back on the desk yet.

#### Question 5:
Has Tom done his homework yet?
(Yes)
Answer: Yes, Tom has already done his homework.

#### Question 6:
Have you spoken to the teacher yet?
(Yes)
Answer: Yes, I have already spoken to the teacher.

Explanation:

1. Negative Answers: For negative answers, use "haven't" or "hasn't" followed by the past participle of the verb. For example:
- "No, I haven't finished my homework yet."
- "No, they haven't put the books back on the desk yet."

2. Positive Answers: For positive answers, use "have" or "has" followed by the past participle of the verb. You can also add "already" to emphasize that the action has been completed. For example:
- "Yes, Peter has already written the letter."
- "Yes, I have already made the dinner."

3. Structure: The structure of the Present Perfect Tense is:
- Affirmative: Subject + have/has + Past Participle + Remaining Sentence
- Negative: Subject + haven't/hasn't + Past Participle + Remaining Sentence

Final Answers:

1. No, I haven't finished my homework yet.
2. Yes, Peter has already written the letter.
3. Yes, I have already made the dinner.
4. No, they haven't put the books back on the desk yet.
5. Yes, Tom has already done his homework.
6. Yes, I have already spoken to the teacher.

Final Answer:
\boxed{
\begin{aligned}
1. & \text{ No, I haven't finished my homework yet.} \\
2. & \text{ Yes, Peter has already written the letter.} \\
3. & \text{ Yes, I have already made the dinner.} \\
4. & \text{ No, they haven't put the books back on the desk yet.} \\
5. & \text{ Yes, Tom has already done his homework.} \\
6. & \text{ Yes, I have already spoken to the teacher.}
\end{aligned}
}