Grammatical Error Worksheet: Practice Exercises & Free PDF Download

Improving your command of grammar is essential for strong English proficiency. To support this goal, the worksheet below focuses on identifying and correcting grammatical errors through a variety of structured exercises designed to strengthen accuracy and confidence.

You may also find the following related resources helpful for expanding your understanding of common grammar mistakes:

• Commonly Confused Words
• Mistakes with Prepositions
• Sentence Fragment
• Run-On Sentence
• Comma Splice

Download Grammatical Error Worksheet

Pin

Download Grammatical Error Worksheets PDF

Grammatical Error Exercises

Grammatical Error Exercise 1: Identify the Error

Read the following sentences and identify the grammatical errors. Write the correct version of each sentence.

1. She don’t like going to the gym.
2. The cats eats their food quickly.
3. He has went to the store yesterday.
4. Me and my friend are going to the concert.
5. There’s many reasons to celebrate.
6. Him and I went to the bookstore to find a new novel.
7. The team play well together during the championship game.
8. She have two cats and three dogs in her house.
9. The books on the shelf is dusty and old.
10. Everyone in the class has finished their test early.
11. The committee was divided in their opinions on the matter.
12. There is a few slices of pizza left in the box.
13. Neither the teacher nor the students was prepared for the fire drill.
14. The data is showing a significant increase in sales this quarter.
15. The group of students are planning a trip to the museum.

Answers

1. She doesn’t like going to the gym.
2. The cats eat their food quickly.
3. He went to the store yesterday.
4. My friend and I are going to the concert.
5. There are many reasons to celebrate.
6. He and I went to the bookstore to find a new novel.
7. The team plays well together during the championship game.
8. She has two cats and three dogs in her house.
9. The books on the shelf are dusty and old.
10. Everyone in the class has finished their test early.
11. The committee was divided in its opinions on the matter.
12. There are a few slices of pizza left in the box.
13. Neither the teacher nor the students were prepared for the fire drill.
14. The data is showing a significant increase in sales this quarter.
15. The group of students is planning a trip to the museum.

Grammatical Error Exercise 2: Correct Tense Usage

Choose the correct verb tense to complete the sentences.

1. By the time we arrived, the play (has started / had started).
2. I (will finish / would finish) my homework before I go to the movies.
3. She (was writing / writes) an email when I saw her.
4. They (have been / had been) living in Paris for five years before they moved to London.
5. If I (knew / had known) about the traffic, I would have left earlier.
6. By next year, they (will have completed / will complete) their studies.
7. The scientist (discovers / discovered) a new element last month.
8. If I (see / saw) him tomorrow, I’ll give him the message.
9. She (was / has been) in charge of the project since its inception.
10. By the time you arrive, I (will leave / will have left).
11. They (are playing / play) soccer every Thursday.
12. I can’t believe she (will be / is) moving to another country soon.
13. By the time we get to the theater, the movie (will start / will have started).
14. When I was a child, I (would play / played) in the park every day.
15. If he (worked / had worked) harder, he might have passed the exam.
16. We (were / have been) friends for over a decade.
17. Every morning, she (is jogging / jogs) around the neighborhood.
18. Before he became famous, he (had written / wrote) several short stories.
19. If it (rains / will rain) tomorrow, we will have to cancel the picnic.
20. They (had been / were) waiting for hours before the concert tickets went on sale.

Answers

1. had started
2. will finish
3. was writing
4. had been
5. had known
6. will have completed
7. discovered
8. see
9. has been
10. will have left
11. play
12. is
13. will have started
14. played
15. had worked
16. have been
17. jogs
18. had written
19. rains
20. had been

Grammatical Error Exercise 3: True or False?

1. It is correct to say “I am good at cooking.” (True/False)
2. You should say “I am interested in to learn new languages.” (True/False)
3. “She is married with a dentist.” is the correct usage. (True/False)
4. “We discussed about the problem.” is a correct sentence. (True/False)
5. “He is scared of the dark.” is grammatically correct. (True/False)
6. “They arrived to the airport late.” is the correct form. (True/False)
7. You can say “I will meet you on 3 p.m.” (True/False)
8. “She is responsible for managing the team.” is correct. (True/False)
9. “He is similar to his brother.” is the correct usage. (True/False)
10. “I prefer coffee than tea.” is a correct use of prepositions. (True/False)
11. “Let’s meet at Saturday night.” is grammatically correct. (True/False)
12. “I apologize for being late.” is the correct form. (True/False)
13. “We are excited about going on vacation.” is correct. (True/False)
14. “She invested a lot of time in studying.” is grammatically correct. (True/False)
15. “I’m looking forward to meet you.” is the correct sentence. (True/False)

Answers

1. True
2. False (Correct: “I am interested in learning new languages.”)
3. False (Correct: “She is married to a dentist.”)
4. False (Correct: “We discussed the problem.”)
5. True
6. False (Correct: “They arrived at the airport late.”)
7. False (Correct: “I will meet you at 3 p.m.”)
8. True
9. True
10. False (Correct: “I prefer coffee to tea.”)
11. False (Correct: “Let’s meet on Saturday night.”)
12. True
13. True
14. True
15. False (Correct: “I’m looking forward to meeting you.”)