
Common Mistakes in English Grammar (And How to Avoid Them)
Learning English grammar can be tricky, even for advanced learners. At Britannia Language Center, we often see students struggling with certain common grammar mistakes — but don’t worry! Identifying these errors is the first step to mastering English. Here’s a fun yet practical guide to the most frequent grammar slip-ups and how you can avoid them.
Mixing Up “Their,” “There,” and “They’re”
This is a classic grammar challenge! These three sound the same but have different meanings:
- Their – shows possession (e.g., Their books are on the table.)
- There – refers to a place (e.g., The book is over there.)
- They’re – contraction of “they are” (e.g., They’re going to the park.)
Tip: When in doubt, try replacing “they’re” with “they are” in the sentence — if it still makes sense, you’ve got the right word!
Incorrect Use of Verb Tenses
Using the wrong tense can confuse your listener or reader about when something happened. For example:
- Wrong: I go to the market yesterday.
- Correct: I went to the market yesterday.
Tip: Pay attention to time indicators like “yesterday,” “now,” or “tomorrow” to pick the correct tense.
Confusing “Its” and “It’s”
- Its – possessive form of “it” (e.g., The cat licked its paws.)
- It’s – contraction of “it is” or “it has” (e.g., It’s raining today.)
Tip: Try replacing “it’s” with “it is” or “it has” to see if the sentence still makes sense.
Using Double Negatives
Double negatives can unintentionally create positive meanings or sound awkward. For example:
- Wrong: I don’t need no help.
- Correct: I don’t need any help.
Tip: Stick to one negative per sentence for clear meaning.
Misplacing Adjectives and Adverbs
Adjectives describe nouns (e.g., She is a good teacher.)
Adverbs describe verbs, adjectives, or other adverbs (e.g., She teaches well.)
Common mistake: “She sings beautiful” instead of “She sings beautifully.”
Tip: If you’re describing how something is done, use an adverb (usually ending in -ly).
Why Avoiding These Mistakes Matters
Clear and correct grammar makes your English sound more professional and easier to understand. Whether you’re preparing for exams like IELTS, applying for jobs, or simply chatting with friends, good grammar boosts your confidence and credibility.