- Home
- Writing
- Grammar Issues
- Top 10 Grammar Mistakes
Top 10 Grammar Mistakes
- By Ann Bowers
- Published 03/16/2009
- Grammar Issues
- Unrated
Ann Bowers
Ann Bowers, a former teacher, is a writer for in-home tutoring company TeamUP! Tutors. www.TeamUpTutors.com Looking for a private writing tutor in Seattle or near Los Angeles, San Diego, San Jose, Oakland, or San Francisco? Find out how TeamUP! Tutors can help. Call toll-free 888.383.2687. More articles are on our web site for you to help your child succeed in school.
View all articles by Ann Bowers1. Starting sentences with "And." It is all right to start a sentence with "And" occasionally, but some children do it constantly. Limit your young writer to two or fewer "Ands" at the beginning of sentences in each essay.
Wrong: I went roller-skating with my friends. And then we went out for pizza. And then we went home.
Right: I went roller-skating with my friends. Then we went out for pizza. Then we went home.
2. Using casual speech in an essay, such as words like "wanna," "gonna," and "should of."
Wrong: We wanna buy new CDs on Saturday.
Right: We want to buy new CDs on Saturday.
Wrong: My cousin is gonna graduate with top honors.
Right: My cousin is going to graduate with top honors.
Wrong: They should of studied harder for the test.
Right: They should have studied harder for the test.
3. Misunderstanding apostrophes used with singular and plural nouns.
Wrong: These are my sisters' books.
Right: These are my sister's books.
Explanation: The correct answer places the apostrophe before the letter 's' in the word "sister's" because "sister" is singular; "sister" possesses the books. The apostrophe would come after the last 's' in "sisters" only if more than one sister owned the books.
Wrong: This is my parent's house.
Right: This is my parents' house.
Explanation: The correct answer places the apostrophe after the letter 's' in the word "parents." This shows possession by more than one parent (a plural noun).
4. Creating run-on sentences. Divide into separate sentences or use semi-colons to connect two complete sentences.
Wrong: Summer is my favorite time of year because I can play with my friends and go to the mall and stay out later than during the school year because it doesn't get dark so early like when school is on.
Right: Summer is my favorite time of year. I can play with my friends, go to the mall, and stay out later. During the school year, it gets dark so early that I have to go home.
Wrong: I enjoy lots of different foods like hamburgers and sodas and fried chicken so I choose them when we go out to eat.
Right: I enjoy lots of different foods, like hamburgers, sodas, and fried chicken; I choose them when we go out to eat.
Explanation: The correct answers break up the run-on sentence in each example into two or more separate statements.
5. Confusing "its" and "it's."
Wrong: Its a beautiful day.
Right: It's a beautiful day.
Explanation: The correct answer uses "it's" because, in this sentence, "it's" means "it is." "It's" is a contraction of "it is."
Wrong: I worried about the dog because it's paw was hurt.
Right: I worried about the dog because its paw was hurt.
Explanation: The correct answer uses "its" because it shows possession. You would not say, "I worried about the dog because it is paw was hurt."
6. Misconnecting verbs.
Wrong: We should try and play together.
Right: We should try to play together.
Explanation: The correct answer replaces the word 'and' with 'to,' which properly connects the verbs.
7. Confusing "then" and "than."
Wrong: He is taller then I am.
Right: He is taller than I am.
Explanation: Use the word "than" to indicate a comparison between two things. The word "then" refers to time.
8. Confusing "there," "their," and "they're."
Wrong: We want to play over their.
Right: We want to play over there.
Explanation: Use the word "there" to indicate a location.
Wrong: They are riding they're bicycles.
Right: They are riding their bicycles.
Explanation: Use the word "their" to indicate possession.
Wrong: Their going to the movies today.
Right: They're going to the movies today.
Explanation: Use the word "they're," a contraction, when you mean "they are."
9. Mixing singular and plural subjects in one sentence.
Wrong: I helped my friend with their homework.
Right: I helped my friend with his (or her) homework.
Explanation: "My friend" is a single person, so it is incorrect to say "their homework." "Their" refers to more than one person.
10. Mixing up "your" and "you're."
Wrong: He's going to you're party
Right: He's going to your party.
Wrong: Your going to his party.
Right: You're going to his party.
Explanation: "Your" means something belongs to you. "You're" is a contraction for "you are."
Conclusion
To help children become better writers, you or a tutor should work with them to avoid the top ten grammar mistakes. If you have concerns about your child's progress in writing, speak to the child's teacher to discuss progress and activities you can work on at home.

