English worksheets: Negative sentences and questions - Free Printable

Let's solve the worksheet step by step.

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A. Complete the pairs of affirmative and negative sentences.

We need to form the negative version of each sentence.

#### Rules:
- For be verbs (am, is, are, was, were) → add not after the verb.
- For modal verbs (can, will, must, has to, etc.) → add not after the modal.
- For main verbs (like go, like, do) → use auxiliary verb (do/does/did) + not, then the base verb.

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1. They are at home.
→ They are not at home.

2. Her house was big.
→ Her house was not big.

3. He goes to the beach.
→ He does not go to the beach.
*(Use "does" for third person singular present tense)*

4. Sandy can sing very well.
→ Sandy cannot sing very well.
*(or "Sandy can't sing very well.")*

5. She can do her homework by herself.
→ She cannot do her homework by herself.
*(or "She can't do her homework by herself.")*

6. I will go home.
→ I will not go home.
*(or "I won't go home.")*

7. David likes tennis.
→ David does not like tennis.
*(Use "does" because "likes" is third person singular)*

8. She has to sweep the floor.
→ She does not have to sweep the floor.
*(Note: "has to" is a modal-like phrase; we use "does not have to")*

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B. Change the sentences into questions.

We need to turn each sentence into a question using correct question formation.

#### Rules:
- For be verbs: Move the verb to the front.
- For modals (can, will, has to, etc.): Move the modal to the front.
- For main verbs: Use auxiliary (do/does/did) at the beginning.
- For "has to", use "does" as auxiliary.

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1. They are at school.
→ Are they at school?

2. His house was big.
→ Was his house big?

3. He goes to school.
→ Does he go to school?

4. My friend can swim very well.
→ Can your friend swim very well?
*(Change "my" to "your" in questions unless it's a personal question — but here it's general, so "your" is appropriate. Alternatively, if asking about the speaker’s friend: "Can my friend swim very well?" is also acceptable, but usually we use "your" in such exercises.)*
✔ Can your friend swim very well?

5. She can ride a bicycle.
→ Can she ride a bicycle?

6. They will go home.
→ Will they go home?

7. David likes tennis.
→ Does David like tennis?

8. She has to work.
→ Does she have to work?

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✔ Final Answers:

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A. Negative Sentences

1. They are not at home.
2. Her house was not big.
3. He does not go to the beach.
4. Sandy cannot sing very well.
5. She cannot do her homework by herself.
6. I will not go home.
7. David does not like tennis.
8. She does not have to sweep the floor.

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B. Questions

1. Are they at school?
2. Was his house big?
3. Does he go to school?
4. Can your friend swim very well?
5. Can she ride a bicycle?
6. Will they go home?
7. Does David like tennis?
8. Does she have to work?

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✔ These answers follow standard English grammar rules for forming negatives and questions. Let me know if you'd like explanations for any specific rule!