**Correct:** She doesn’t know where the library is. **Error:** "Don’t" is incorrect for third-person singular. It should be "doesn’t."
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2. The dog run through the park every morning
**Correct:** The dog runs through the park every morning. **Error:** "Run" should agree with the singular subject "dog" as "runs."
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3. I have a apple in my lunchbox
**Correct:** I have an apple in my lunchbox. **Error:** "A" should be "an" because "apple" starts with a vowel sound.
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4. They was going to the store when it started raining
**Correct:** They were going to the store when it started raining. **Error:** "Was" should be "were" to match the plural subject "they."
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5. He has went to the gym three times this week
**Correct:** He has gone to the gym three times this week. **Error:** "Went" should be "gone" in the present perfect tense.
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6. Each of the students are responsible for completing their homework
**Correct:** Each of the students is responsible for completing their homework. **Error:** "Each" is singular and requires "is."
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7. My brother have two bicycles, but he doesn’t use either of them
**Correct:** My brother has two bicycles, but he doesn’t use either of them. **Error:** "Have" should be "has" to match the singular subject "brother."
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8. The children plays soccer in the backyard after school
**Correct:** The children play soccer in the backyard after school. **Error:** "Plays" should be "play" to match the plural subject "children."
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9. I seen the movie last weekend with my friends
**Correct:** I saw the movie last weekend with my friends. **Error:** "Seen" should be "saw" in the simple past tense.
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10. There is five books on the table that belong to you
**Correct:** There are five books on the table that belong to you. **Error:** "Is" should be "are" to match the plural subject "books."
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11. She was more happier when she lived closer to her family
**Correct:** She was happier when she lived closer to her family. **Error:** "More" is redundant with the comparative "happier."
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12. The team has win every game this season
**Correct:** The team has won every game this season. **Error:** "Win" should be "won" in the present perfect tense.
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13. I don’t need no help with this project
**Correct:** I don’t need any help with this project. **Error:** Double negatives ("don’t" and "no") create a positive meaning.
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15. If I was you, I would talk to the principal about the issue
**Correct:** If I were you, I would talk to the principal about the issue. **Error:** In hypothetical situations, "was" should be "were."
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17. Me and my friends are going to the mall later
**Correct:** My friends and I are going to the mall later. **Error:** "Me" should be "I" as it’s the subject of the sentence.
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19. He did good on his science test last week
**Correct:** He did well on his science test last week. **Error:** "Good" should be "well" as it modifies the verb "did."