English grammar worksheet featuring exercises to identify and correct common language errors.
English worksheet with grammar exercises to correct mistakes, titled "Correct the mistakes" with numbered sentences.
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Show Answer Key & Explanations
Step-by-step solution for: Correct the mistakes in the sentences worksheet
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Show Answer Key & Explanations
Step-by-step solution for: Correct the mistakes in the sentences worksheet
Let's go through each sentence and correct the mistakes. I'll explain the errors and provide the corrected versions.
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1. Have you ever be to London?
✘ Error: "be" should be in past participle form after "have."
✔ Corrected: *Have you ever been to London?*
✔️ Explanation: After "have," we need the past participle ("been") for present perfect tense.
---
2. They haven't got dinner at 7 o'clock.
✘ Error: "Got dinner" is incorrect; "dinner" is not something you "get" in this context.
✔ Corrected: *They haven't had dinner at 7 o'clock.*
✔️ Explanation: Use "had" (past participle) with "have" to express completed actions.
---
3. I don't never drink coffee in the morning.
✘ Error: Double negative — "don't" + "never" = incorrect.
✔ Corrected: *I never drink coffee in the morning.* or *I don't drink coffee in the morning.*
✔️ Explanation: "Don't" and "never" both negate, so use only one.
---
4. What your telephone number?
✘ Error: Missing auxiliary verb for question structure.
✔ Corrected: *What is your telephone number?*
✔️ Explanation: Need "is" to make a proper question.
---
5. We going to play chess this afternoon.
✘ Error: Missing auxiliary verb "are."
✔ Corrected: *We are going to play chess this afternoon.*
✔️ Explanation: "Going to" requires "be" before it in present continuous future.
---
6. This computer was made by Japan.
✘ Error: "by Japan" is incorrect; countries aren’t agents of production like people.
✔ Corrected: *This computer was made in Japan.*
✔️ Explanation: Use "in" to indicate location of manufacturing.
---
7. She is a bank manager, doesn't she?
✘ Error: Tag question mismatch — positive statement needs negative tag.
✔ Corrected: *She is a bank manager, isn't she?*
✔️ Explanation: For "is," the tag should be "isn't."
---
8. They come in Italy.
✘ Error: Incorrect preposition and verb tense.
✔ Corrected: *They come from Italy.*
✔️ Explanation: Use "from" to indicate origin.
---
9. I'm preferring to buy clothes in boutiques.
✘ Error: "I'm preferring" is ungrammatical.
✔ Corrected: *I prefer to buy clothes in boutiques.*
✔️ Explanation: "Prefer" is not used in continuous tenses.
---
10. How many cheese you add in this dish?
✘ Error: "Cheese" is uncountable, so "how many" is wrong; also missing auxiliary verb.
✔ Corrected: *How much cheese do you add to this dish?*
✔️ Explanation: Use "how much" for uncountable nouns, and add "do" for question.
---
11. We talked when the telephone rang.
✘ Error: Tense inconsistency — "talked" is simple past, but "rang" suggests an interruption.
✔ Corrected: *We were talking when the telephone rang.*
✔️ Explanation: Use past continuous ("were talking") for ongoing action interrupted by another.
---
12. Do you ever tried weird food?
✘ Error: "Do" can't be used with past tense "tried."
✔ Corrected: *Have you ever tried weird food?*
✔️ Explanation: Use present perfect ("have tried") for life experiences.
---
13. She has finished cooking before we came.
✘ Error: "Has finished" is present perfect, but "before we came" is past — mismatch.
✔ Corrected: *She had finished cooking before we came.*
✔️ Explanation: Use past perfect ("had finished") for action completed before another past action.
---
14. How much dollars you spend a week?
✘ Error: "Dollars" is countable → use "how many"; missing auxiliary verb.
✔ Corrected: *How many dollars do you spend a week?*
✔️ Explanation: Use "how many" for countable nouns, and add "do."
---
15. Who does play the violin?
✘ Error: "Does" is unnecessary here.
✔ Corrected: *Who plays the violin?*
✔️ Explanation: Simple present question — no need for "does" unless emphasizing.
---
16. I was going to fly to NY next month.
✘ Error: "Was going to" refers to past plans, but "next month" is future.
✔ Corrected: *I am going to fly to NY next month.*
✔️ Explanation: Use "am going to" for future plans.
---
17. They doesn't enjoy loud parties.
✘ Error: Subject-verb agreement — "they" needs plural verb.
✔ Corrected: *They don't enjoy loud parties.*
✔️ Explanation: "They" takes "don't," not "doesn't."
---
18. It gets dark.
✘ Error: No mistake — this is grammatically correct.
✔ Corrected: *It gets dark.* (No change needed)
✔️ Explanation: Correct use of present simple for habitual action.
---
19. What you mean?
✘ Error: Missing auxiliary verb.
✔ Corrected: *What do you mean?*
✔️ Explanation: Need "do" for question formation.
---
20. I'm not understanding the plan.
✘ Error: "Not understanding" is awkward; better to use simple present.
✔ Corrected: *I don't understand the plan.*
✔️ Explanation: Use simple present for general lack of understanding.
---
21. The soup smell really good.
✘ Error: Subject-verb agreement — "soup" is singular.
✔ Corrected: *The soup smells really good.*
✔️ Explanation: "Soup" is singular → "smells."
---
22. She has win the prize.
✘ Error: "Win" should be past participle.
✔ Corrected: *She has won the prize.*
✔️ Explanation: Present perfect requires past participle ("won").
---
23. How many it costs?
✘ Error: Word order and missing auxiliary verb.
✔ Corrected: *How much does it cost?*
✔️ Explanation: "Costs" is uncountable → use "how much"; add "does."
---
24. I'm thinking he is a very intelligent boy.
✘ Error: "I'm thinking" is redundant; better to say "I think."
✔ Corrected: *I think he is a very intelligent boy.*
✔️ Explanation: Use simple present for opinions.
---
25. It often raining in Autumn.
✘ Error: Missing auxiliary verb.
✔ Corrected: *It often rains in autumn.*
✔️ Explanation: Use "rains" for simple present.
---
26. Look! The children play outdoors.
✘ Error: "Play" should be present continuous to match "Look!"
✔ Corrected: *Look! The children are playing outdoors.*
✔️ Explanation: "Look!" signals an action happening now → use present continuous.
---
27. I'm a busy teacher, am In't.
✘ Error: Typo and incorrect tag.
✔ Corrected: *I'm a busy teacher, aren't I?*
✔️ Explanation: "I'm" = "I am" → tag question uses "aren't I?"
---
| Original | Corrected |
|--------|----------|
| 1. Have you ever be to London? | Have you ever been to London? |
| 2. They haven't got dinner at 7 o'clock. | They haven't had dinner at 7 o'clock. |
| 3. I don't never drink coffee in the morning. | I never drink coffee in the morning. |
| 4. What your telephone number? | What is your telephone number? |
| 5. We going to play chess this afternoon. | We are going to play chess this afternoon. |
| 6. This computer was made by Japan. | This computer was made in Japan. |
| 7. She is a bank manager, doesn't she? | She is a bank manager, isn't she? |
| 8. They come in Italy. | They come from Italy. |
| 9. I'm preferring to buy clothes in boutiques. | I prefer to buy clothes in boutiques. |
| 10. How many cheese you add in this dish? | How much cheese do you add to this dish? |
| 11. We talked when the telephone rang. | We were talking when the telephone rang. |
| 12. Do you ever tried weird food? | Have you ever tried weird food? |
| 13. She has finished cooking before we came. | She had finished cooking before we came. |
| 14. How much dollars you spend a week? | How many dollars do you spend a week? |
| 15. Who does play the violin? | Who plays the violin? |
| 16. I was going to fly to NY next month. | I am going to fly to NY next month. |
| 17. They doesn't enjoy loud parties. | They don't enjoy loud parties. |
| 18. It gets dark. | It gets dark. |
| 19. What you mean? | What do you mean? |
| 20. I'm not understanding the plan. | I don't understand the plan. |
| 21. The soup smell really good. | The soup smells really good. |
| 22. She has win the prize. | She has won the prize. |
| 23. How many it costs? | How much does it cost? |
| 24. I'm thinking he is a very intelligent boy. | I think he is a very intelligent boy. |
| 25. It often raining in Autumn. | It often rains in autumn. |
| 26. Look! The children play outdoors. | Look! The children are playing outdoors. |
| 27. I'm a busy teacher, am In't. | I'm a busy teacher, aren't I? |
---
Let me know if you'd like a printable version or explanations in simpler terms!
---
1. Have you ever be to London?
✘ Error: "be" should be in past participle form after "have."
✔ Corrected: *Have you ever been to London?*
✔️ Explanation: After "have," we need the past participle ("been") for present perfect tense.
---
2. They haven't got dinner at 7 o'clock.
✘ Error: "Got dinner" is incorrect; "dinner" is not something you "get" in this context.
✔ Corrected: *They haven't had dinner at 7 o'clock.*
✔️ Explanation: Use "had" (past participle) with "have" to express completed actions.
---
3. I don't never drink coffee in the morning.
✘ Error: Double negative — "don't" + "never" = incorrect.
✔ Corrected: *I never drink coffee in the morning.* or *I don't drink coffee in the morning.*
✔️ Explanation: "Don't" and "never" both negate, so use only one.
---
4. What your telephone number?
✘ Error: Missing auxiliary verb for question structure.
✔ Corrected: *What is your telephone number?*
✔️ Explanation: Need "is" to make a proper question.
---
5. We going to play chess this afternoon.
✘ Error: Missing auxiliary verb "are."
✔ Corrected: *We are going to play chess this afternoon.*
✔️ Explanation: "Going to" requires "be" before it in present continuous future.
---
6. This computer was made by Japan.
✘ Error: "by Japan" is incorrect; countries aren’t agents of production like people.
✔ Corrected: *This computer was made in Japan.*
✔️ Explanation: Use "in" to indicate location of manufacturing.
---
7. She is a bank manager, doesn't she?
✘ Error: Tag question mismatch — positive statement needs negative tag.
✔ Corrected: *She is a bank manager, isn't she?*
✔️ Explanation: For "is," the tag should be "isn't."
---
8. They come in Italy.
✘ Error: Incorrect preposition and verb tense.
✔ Corrected: *They come from Italy.*
✔️ Explanation: Use "from" to indicate origin.
---
9. I'm preferring to buy clothes in boutiques.
✘ Error: "I'm preferring" is ungrammatical.
✔ Corrected: *I prefer to buy clothes in boutiques.*
✔️ Explanation: "Prefer" is not used in continuous tenses.
---
10. How many cheese you add in this dish?
✘ Error: "Cheese" is uncountable, so "how many" is wrong; also missing auxiliary verb.
✔ Corrected: *How much cheese do you add to this dish?*
✔️ Explanation: Use "how much" for uncountable nouns, and add "do" for question.
---
11. We talked when the telephone rang.
✘ Error: Tense inconsistency — "talked" is simple past, but "rang" suggests an interruption.
✔ Corrected: *We were talking when the telephone rang.*
✔️ Explanation: Use past continuous ("were talking") for ongoing action interrupted by another.
---
12. Do you ever tried weird food?
✘ Error: "Do" can't be used with past tense "tried."
✔ Corrected: *Have you ever tried weird food?*
✔️ Explanation: Use present perfect ("have tried") for life experiences.
---
13. She has finished cooking before we came.
✘ Error: "Has finished" is present perfect, but "before we came" is past — mismatch.
✔ Corrected: *She had finished cooking before we came.*
✔️ Explanation: Use past perfect ("had finished") for action completed before another past action.
---
14. How much dollars you spend a week?
✘ Error: "Dollars" is countable → use "how many"; missing auxiliary verb.
✔ Corrected: *How many dollars do you spend a week?*
✔️ Explanation: Use "how many" for countable nouns, and add "do."
---
15. Who does play the violin?
✘ Error: "Does" is unnecessary here.
✔ Corrected: *Who plays the violin?*
✔️ Explanation: Simple present question — no need for "does" unless emphasizing.
---
16. I was going to fly to NY next month.
✘ Error: "Was going to" refers to past plans, but "next month" is future.
✔ Corrected: *I am going to fly to NY next month.*
✔️ Explanation: Use "am going to" for future plans.
---
17. They doesn't enjoy loud parties.
✘ Error: Subject-verb agreement — "they" needs plural verb.
✔ Corrected: *They don't enjoy loud parties.*
✔️ Explanation: "They" takes "don't," not "doesn't."
---
18. It gets dark.
✘ Error: No mistake — this is grammatically correct.
✔ Corrected: *It gets dark.* (No change needed)
✔️ Explanation: Correct use of present simple for habitual action.
---
19. What you mean?
✘ Error: Missing auxiliary verb.
✔ Corrected: *What do you mean?*
✔️ Explanation: Need "do" for question formation.
---
20. I'm not understanding the plan.
✘ Error: "Not understanding" is awkward; better to use simple present.
✔ Corrected: *I don't understand the plan.*
✔️ Explanation: Use simple present for general lack of understanding.
---
21. The soup smell really good.
✘ Error: Subject-verb agreement — "soup" is singular.
✔ Corrected: *The soup smells really good.*
✔️ Explanation: "Soup" is singular → "smells."
---
22. She has win the prize.
✘ Error: "Win" should be past participle.
✔ Corrected: *She has won the prize.*
✔️ Explanation: Present perfect requires past participle ("won").
---
23. How many it costs?
✘ Error: Word order and missing auxiliary verb.
✔ Corrected: *How much does it cost?*
✔️ Explanation: "Costs" is uncountable → use "how much"; add "does."
---
24. I'm thinking he is a very intelligent boy.
✘ Error: "I'm thinking" is redundant; better to say "I think."
✔ Corrected: *I think he is a very intelligent boy.*
✔️ Explanation: Use simple present for opinions.
---
25. It often raining in Autumn.
✘ Error: Missing auxiliary verb.
✔ Corrected: *It often rains in autumn.*
✔️ Explanation: Use "rains" for simple present.
---
26. Look! The children play outdoors.
✘ Error: "Play" should be present continuous to match "Look!"
✔ Corrected: *Look! The children are playing outdoors.*
✔️ Explanation: "Look!" signals an action happening now → use present continuous.
---
27. I'm a busy teacher, am In't.
✘ Error: Typo and incorrect tag.
✔ Corrected: *I'm a busy teacher, aren't I?*
✔️ Explanation: "I'm" = "I am" → tag question uses "aren't I?"
---
✔ Final Answer Summary:
| Original | Corrected |
|--------|----------|
| 1. Have you ever be to London? | Have you ever been to London? |
| 2. They haven't got dinner at 7 o'clock. | They haven't had dinner at 7 o'clock. |
| 3. I don't never drink coffee in the morning. | I never drink coffee in the morning. |
| 4. What your telephone number? | What is your telephone number? |
| 5. We going to play chess this afternoon. | We are going to play chess this afternoon. |
| 6. This computer was made by Japan. | This computer was made in Japan. |
| 7. She is a bank manager, doesn't she? | She is a bank manager, isn't she? |
| 8. They come in Italy. | They come from Italy. |
| 9. I'm preferring to buy clothes in boutiques. | I prefer to buy clothes in boutiques. |
| 10. How many cheese you add in this dish? | How much cheese do you add to this dish? |
| 11. We talked when the telephone rang. | We were talking when the telephone rang. |
| 12. Do you ever tried weird food? | Have you ever tried weird food? |
| 13. She has finished cooking before we came. | She had finished cooking before we came. |
| 14. How much dollars you spend a week? | How many dollars do you spend a week? |
| 15. Who does play the violin? | Who plays the violin? |
| 16. I was going to fly to NY next month. | I am going to fly to NY next month. |
| 17. They doesn't enjoy loud parties. | They don't enjoy loud parties. |
| 18. It gets dark. | It gets dark. |
| 19. What you mean? | What do you mean? |
| 20. I'm not understanding the plan. | I don't understand the plan. |
| 21. The soup smell really good. | The soup smells really good. |
| 22. She has win the prize. | She has won the prize. |
| 23. How many it costs? | How much does it cost? |
| 24. I'm thinking he is a very intelligent boy. | I think he is a very intelligent boy. |
| 25. It often raining in Autumn. | It often rains in autumn. |
| 26. Look! The children play outdoors. | Look! The children are playing outdoors. |
| 27. I'm a busy teacher, am In't. | I'm a busy teacher, aren't I? |
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Let me know if you'd like a printable version or explanations in simpler terms!
Parent Tip: Review the logic above to help your child master the concept of grammatically incorrect sentences worksheet.
