20 Common English Grammar Mistakes and How to Fix Them
“Common English grammar mistakes” appear in everyday conversation, emails, and even in the speech of advanced learners. The problem is not intelligence—it is habit. Once a wrong pattern settles in, it repeats automatically.
In this AdvancedEnglishLab.com lesson, we will correct 20 common English grammar mistakes with clear rules, IPA pronunciation, 4-way tense variations, and two SVG infographics. Every example comes from real spoken English.
“Let us fix these mistakes—one by one.”
“Vocabulary & Phonetics Breakdown”
Before we correct the sentences, let us master the key words.
| Word / Phrase | Part of Speech | Definition | Synonyms | IPA Pronunciation |
|---|---|---|---|---|
| Excuse | Noun | A reason given to justify an action | Reason, justification | /ɪkˈskjuːs/ |
| Preferable | Adjective | More desirable or suitable | Better, preferred | /ˈprefərəbl/ |
| Couple | Noun | Two things or a small number | Pair, duo | /ˈkʌpl/ |
| Abroad | Adverb | In or to a foreign country | Overseas, internationally | /əˈbrɔːd/ |
| Measles | Noun | A contagious viral disease | Rubeola | /ˈmiːzlz/ |
| Scissors | Noun | A cutting tool with two blades | Shears, clippers | /ˈsɪzəz/ |
| Lens | Noun | A curved piece of glass for vision | Eyepiece, optic | /lenz/ |
| Internet | Noun | The global computer network | Cyberspace, web | /ˈɪntənet/ |
“Mistake 1: ‘Excuse to Be Late’ vs ‘Excuse for Being Late'”
Wrong: “He made an excuse to be late.”
Correct: “He made an excuse for being late.”
After the noun “excuse,” we use for + gerund (-ing). We never say “excuse to be.”
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “He makes an excuse for being late.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “He makes an excuse for being late.” | “He made an excuse for being late.” | “He will make an excuse for being late.” |
| Negative | “He does not make an excuse for being late.” | “He did not make an excuse for being late.” | “He will not make an excuse for being late.” |
| Interrogative | “Does he make an excuse for being late?” | “Did he make an excuse for being late?” | “Will he make an excuse for being late?” |
| WH-Question | “Why does he make an excuse for being late?” | “Why did he make an excuse for being late?” | “Why will he make an excuse for being late?” |
“Mistake 2: ‘Don’t Go in the Sun’ vs ‘Don’t Go Out in the Sun'”
Wrong: “Don’t go in the sun.”
Correct: “Don’t go out in the sun.”
“Go out” is a phrasal verb. When talking about sun exposure, always use go out in the sun.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “She goes out in the sun.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “She goes out in the sun.” | “She went out in the sun.” | “She will go out in the sun.” |
| Negative | “She does not go out in the sun.” | “She did not go out in the sun.” | “She will not go out in the sun.” |
| Interrogative | “Does she go out in the sun?” | “Did she go out in the sun?” | “Will she go out in the sun?” |
| WH-Question | “When does she go out in the sun?” | “When did she go out in the sun?” | “When will she go out in the sun?” |
“Mistake 3: ‘Tell Me Why Did You Do That’ vs ‘Tell Me Why You Did That'”
Wrong: “Tell me why did you do that?”
Correct: “Tell me why you did that.”
This is not a direct question. It is an embedded question. Use statement word order after “tell me why.”
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “He tells me why he did that.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “He tells me why he did that.” | “He told me why he did that.” | “He will tell me why he did that.” |
| Negative | “He does not tell me why he did that.” | “He did not tell me why he did that.” | “He will not tell me why he did that.” |
| Interrogative | “Does he tell me why he did that?” | “Did he tell me why he did that?” | “Will he tell me why he did that?” |
| WH-Question | “Why does he tell me why he did that?” | “Why did he tell me why he did that?” | “Why will he tell me why he did that?” |
“Mistake 4: ‘Preferable Than’ vs ‘Preferable To'”
Wrong: “This option is preferable than any other.”
Correct: “This option is preferable to any other.”
After “preferable,” we use to, not “than.”
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “This option is preferable to any other.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “This option is preferable to any other.” | “This option was preferable to any other.” | “This option will be preferable to any other.” |
| Negative | “This option is not preferable to any other.” | “This option was not preferable to any other.” | “This option will not be preferable to any other.” |
| Interrogative | “Is this option preferable to any other?” | “Was this option preferable to any other?” | “Will this option be preferable to any other?” |
| WH-Question | “Why is this option preferable to any other?” | “Why was this option preferable to any other?” | “Why will this option be preferable to any other?” |
“Mistake 5: ‘No Place’ vs ‘No Room / No Space'”
Wrong: “There is no place in the hall.”
Correct: “There is no room in the hall.” / “There is no space in the hall.”
“Place” means a location. “Room” and “space” mean available capacity.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “There is no room in the hall.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “There is no room in the hall.” | “There was no room in the hall.” | “There will be no room in the hall.” |
| Negative | “There is not no room in the hall.” | “There was not no room in the hall.” | “There will not be no room in the hall.” |
| Interrogative | “Is there no room in the hall?” | “Was there no room in the hall?” | “Will there be no room in the hall?” |
| WH-Question | “Why is there no room in the hall?” | “Why was there no room in the hall?” | “Why will there be no room in the hall?” |
“Mistake 6: ‘Get Herself Married’ vs ‘Get Married'”
Wrong: “The girl wants to get herself married.”
Correct: “The girl wants to get married.”
“Get married” is already reflexive in meaning. Adding “herself” is redundant.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “She wants to get married.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “She wants to get married.” | “She wanted to get married.” | “She will want to get married.” |
| Negative | “She does not want to get married.” | “She did not want to get married.” | “She will not want to get married.” |
| Interrogative | “Does she want to get married?” | “Did she want to get married?” | “Will she want to get married?” |
| WH-Question | “Why does she want to get married?” | “Why did she want to get married?” | “Why will she want to get married?” |
“Mistake 7: ‘After the Dinner’ vs ‘After Dinner'”
Wrong: “I will go out after the dinner.”
Correct: “I will go out after dinner.”
Before meals, we do not use “the.” Say after dinner, after lunch, before breakfast.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “I go out after dinner.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “I go out after dinner.” | “I went out after dinner.” | “I will go out after dinner.” |
| Negative | “I do not go out after dinner.” | “I did not go out after dinner.” | “I will not go out after dinner.” |
| Interrogative | “Do I go out after dinner?” | “Did I go out after dinner?” | “Will I go out after dinner?” |
| WH-Question | “When do I go out after dinner?” | “When did I go out after dinner?” | “When will I go out after dinner?” |
“Mistake 8: ‘Went to Abroad’ vs ‘Went Abroad'”
Wrong: “He went to abroad for higher studies.”
Correct: “He went abroad for higher studies.”
“Abroad” is an adverb, not a place name. Never use “to” before it.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “He goes abroad for higher studies.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “He goes abroad for higher studies.” | “He went abroad for higher studies.” | “He will go abroad for higher studies.” |
| Negative | “He does not go abroad for higher studies.” | “He did not go abroad for higher studies.” | “He will not go abroad for higher studies.” |
| Interrogative | “Does he go abroad for higher studies?” | “Did he go abroad for higher studies?” | “Will he go abroad for higher studies?” |
| WH-Question | “Why does he go abroad for higher studies?” | “Why did he go abroad for higher studies?” | “Why will he go abroad for higher studies?” |
“Mistake 9: ‘Isn’t It?’ vs ‘Don’t You?'”
Wrong: “You like ice cream, isn’t it?”
Correct: “You like ice cream, don’t you?”
When the main verb is “like,” the question tag uses do/don’t.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “You like ice cream.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “You like ice cream.” | “You liked ice cream.” | “You will like ice cream.” |
| Negative | “You do not like ice cream.” | “You did not like ice cream.” | “You will not like ice cream.” |
| Interrogative | “Do you like ice cream?” | “Did you like ice cream?” | “Will you like ice cream?” |
| WH-Question | “Why do you like ice cream?” | “Why did you like ice cream?” | “Why will you like ice cream?” |
“Mistake 10: ‘Need $100’ vs ‘Need a $100′”
Wrong: “Why do you need $100?”
**Correct:** “Why do you need a $100?”
When “$100” is counted as one unit, use a before it.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “She needs a $100.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “She needs a $100.” | “She needed a $100.” | “She will need a $100.” |
| Negative | “She does not need a $100.” | “She did not need a $100.” | “She will not need a $100.” |
| Interrogative | “Does she need a $100?” | “Did she need a $100?” | “Will she need a $100?” |
| WH-Question | “Why does she need a $100?” | “Why did she need a $100?” | “Why will she need a $100?” |
“Mistake 11: ‘Cooked This Salad’ vs ‘Made the Salad'”
Wrong: “Who cooked this salad?”
Correct: “Who made the salad?”
Salads are made, not cooked. Food is cooked; salads are assembled.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “She makes the salad.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “She makes the salad.” | “She made the salad.” | “She will make the salad.” |
| Negative | “She does not make the salad.” | “She did not make the salad.” | “She will not make the salad.” |
| Interrogative | “Does she make the salad?” | “Did she make the salad?” | “Will she make the salad?” |
| WH-Question | “Who makes the salad?” | “Who made the salad?” | “Who will make the salad?” |
“Mistake 12: ‘Lenses Are Big’ vs ‘Lens Is Big'”
Wrong: “His new lenses are big.”
Correct: “His new lens is big.”
“Lens” is singular. “Lenses” is plural. For one lens, use is.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “His new lens is big.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “His new lens is big.” | “His new lens was big.” | “His new lens will be big.” |
| Negative | “His new lens is not big.” | “His new lens was not big.” | “His new lens will not be big.” |
| Interrogative | “Is his new lens big?” | “Was his new lens big?” | “Will his new lens be big?” |
| WH-Question | “Why is his new lens big?” | “Why was his new lens big?” | “Why will his new lens be big?” |
“Mistake 13: ‘A Good News’ vs ‘Good News'”
Wrong: “I have a good news for you.”
Correct: “I have good news for you.”
“News” is uncountable. Never say “a news” or “one news.”
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “I have good news for you.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “I have good news for you.” | “I had good news for you.” | “I will have good news for you.” |
| Negative | “I do not have good news for you.” | “I did not have good news for you.” | “I will not have good news for you.” |
| Interrogative | “Do I have good news for you?” | “Did I have good news for you?” | “Will I have good news for you?” |
| WH-Question | “What news do I have for you?” | “What news did I have for you?” | “What news will I have for you?” |
“Mistake 14: ‘A Couple Days’ vs ‘A Couple of Days'”
Wrong: “We will leave in a couple days.”
Correct: “We will leave in a couple of days.”
Always say a couple of before a noun.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “We leave in a couple of days.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “We leave in a couple of days.” | “We left in a couple of days.” | “We will leave in a couple of days.” |
| Negative | “We do not leave in a couple of days.” | “We did not leave in a couple of days.” | “We will not leave in a couple of days.” |
| Interrogative | “Do we leave in a couple of days?” | “Did we leave in a couple of days?” | “Will we leave in a couple of days?” |
| WH-Question | “When do we leave?” | “When did we leave?” | “When will we leave?” |
“Mistake 15: ‘Jeans Is Black’ vs ‘Jeans Are Black'”
Wrong: “His new jeans is black.”
Correct: “His new jeans are black.”
“Jeans” is always plural. Use are, not “is.”
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “His new jeans are black.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “His new jeans are black.” | “His new jeans were black.” | “His new jeans will be black.” |
| Negative | “His new jeans are not black.” | “His new jeans were not black.” | “His new jeans will not be black.” |
| Interrogative | “Are his new jeans black?” | “Were his new jeans black?” | “Will his new jeans be black?” |
| WH-Question | “Why are his new jeans black?” | “Why were his new jeans black?” | “Why will his new jeans be black?” |
“Mistake 16: ‘The Internet Access’ vs ‘Internet Access'”
Wrong: “Do you have the internet access?”
Correct: “Do you have internet access?”
When “internet” describes “access,” no article is used.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “She has internet access.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “She has internet access.” | “She had internet access.” | “She will have internet access.” |
| Negative | “She does not have internet access.” | “She did not have internet access.” | “She will not have internet access.” |
| Interrogative | “Does she have internet access?” | “Did she have internet access?” | “Will she have internet access?” |
| WH-Question | “Why does she have internet access?” | “Why did she have internet access?” | “Why will she have internet access?” |
“Mistake 17: ‘I Love Internet’ vs ‘I Love the Internet'”
Wrong: “I love internet.”
Correct: “I love the internet.”
“The internet” is one of a kind. Use the before it.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “I love the internet.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “I love the internet.” | “I loved the internet.” | “I will love the internet.” |
| Negative | “I do not love the internet.” | “I did not love the internet.” | “I will not love the internet.” |
| Interrogative | “Do I love the internet?” | “Did I love the internet?” | “Will I love the internet?” |
| WH-Question | “Why do I love the internet?” | “Why did I love the internet?” | “Why will I love the internet?” |
“Mistake 18: ‘Couple of More Cups’ vs ‘Couple More Cups'”
Wrong: “I need a couple of more cups of coffee.”
Correct: “I need a couple more cups of coffee.”
When “of” already appears later in the phrase, drop the first “of.”
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “She needs a couple more cups of coffee.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “She needs a couple more cups of coffee.” | “She needed a couple more cups of coffee.” | “She will need a couple more cups of coffee.” |
| Negative | “She does not need a couple more cups of coffee.” | “She did not need a couple more cups of coffee.” | “She will not need a couple more cups of coffee.” |
| Interrogative | “Does she need a couple more cups of coffee?” | “Did she need a couple more cups of coffee?” | “Will she need a couple more cups of coffee?” |
| WH-Question | “How many more cups does she need?” | “How many more cups did she need?” | “How many more cups will she need?” |
“Mistake 19: ‘Measles Are’ vs ‘Measles Is'”
Wrong: “Measles are especially common among children.”
Correct: “Measles is especially common among children.”
“Measles” ends in -s but is singular. Use is.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “Measles is common among children.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “Measles is common among children.” | “Measles was common among children.” | “Measles will be common among children.” |
| Negative | “Measles is not common among children.” | “Measles was not common among children.” | “Measles will not be common among children.” |
| Interrogative | “Is measles common among children?” | “Was measles common among children?” | “Will measles be common among children?” |
| WH-Question | “Why is measles common among children?” | “Why was measles common among children?” | “Why will measles be common among children?” |
“Mistake 20: ‘Scissors Is’ vs ‘Scissors Are'”
Wrong: “The scissors is not big enough.”
Correct: “The scissors are not big enough.”
“Scissors” has two parts and is always plural. Use are.
“4-Way Sentence Variations & Tense Matrix”
Base Sentence: “The scissors are not big enough.”
| Structure | Present Simple | Past Simple | Future Simple |
|---|---|---|---|
| Positive | “The scissors are big enough.” | “The scissors were big enough.” | “The scissors will be big enough.” |
| Negative | “The scissors are not big enough.” | “The scissors were not big enough.” | “The scissors will not be big enough.” |
| Interrogative | “Are the scissors big enough?” | “Were the scissors big enough?” | “Will the scissors be big enough?” |
| WH-Question | “Why are the scissors not big enough?” | “Why were the scissors not big enough?” | “Why will the scissors not be big enough?” |
“Step-by-Step Sentence Expansion Method”
Let us build a sentence about grammar mistakes step by step.
“Level 1 (Base): Subject + Verb”
“She writes.”
“Level 2 (+ Modifiers): Subject + Verb + Adverb”
“She writes carefully.”
“Level 3 (+ Context): Subject + Verb + Modifier + Prepositional Phrase”
“She writes carefully in her notebook.”
“Level 4 (+ Detail): Complete Expanded Sentence”
“She writes carefully in her notebook because she wants to avoid common grammar mistakes.”
“Practice Exercise”
Correct the following sentences. Write your answers in the comments.
- “She made an excuse to be absent.”
- “Don’t go in the sun without a hat.”
- “Tell me why did you leave early.”
- “This plan is preferable than the old one.”
- “There is no place in the car.”
- “He wants to get himself married.”
- “We will meet after the lunch.”
- “She went to abroad last year.”
- “You like coffee, isn’t it?”
- “I have a good news for you.”
“Bonus challenge:” Write one original sentence using each of the 20 corrected forms.
“Key Takeaways”
- “Excuse for being” — never “excuse to be.”
- “Go out in the sun” — phrasal verb.
- “Tell me why you did” — embedded question order.
- “Preferable to” — never “preferable than.”
- “No room / no space” — not “no place.”
- “Get married” — no “herself.”
- “After dinner” — no “the.”
- “Go abroad” — no “to.”
- “Don’t you?” — question tag for “like.”
- “A $100” — counted as one unit.
- “Made the salad” — salads are made.
- “Lens is big” — singular.
- “Good news” — uncountable.
- “A couple of days” — keep “of.”
- “Jeans are black” — always plural.
- “Internet access” — no “the.”
- “The internet” — one of a kind.
- “Couple more cups” — drop first “of.”
- “Measles is” — singular despite -s.
- “Scissors are” — always plural.
“Conclusion”
Mastering these 20 common English grammar mistakes will instantly improve your spoken and written English. Each correction follows a clear rule. Practice them daily, and they will become natural.
Whether you are writing an email, joining a conversation, or preparing for an exam, this knowledge gives you confidence. Fix these common English grammar mistakes one by one, and your fluency will grow fast.
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“Keep learning. Keep growing.”
