Common Mistakes in English Even Native Speakers Make
Learn most common English mistakes—even native speakers make them! Our guide with simple explanations, examples, and tips will help you avoid them.
Have you ever seen someone write your welcome, their going home, or I sing good? These are common English mistakes, and native speakers make them too.
Some words sound the same but have different meanings. Others look almost identical or follow grammar rules that are easy to forget. You may see these mistakes in messages, social media posts, emails, and everyday writing. Our simple guide will explain 12 commonly confused English words and grammar mistakes, so let's get started!
Their, There, and They're
These three words sound exactly the same, so they are easy to mix up. The key is to look at the job each word does.
Their shows that something belongs to people.
- Their house is very big.
- I like their new car.
There usually talks about a place or shows that something exists.
- The keys are over there.
- There is a park near my house.
They're is the short form of they are.
- They're very friendly.
- I think they're ready.
Your and You're
These two words sound the same, but one shows ownership and the other is a short form.
Your means that something belongs to you.
- Your phone is ringing.
- I like your idea.
You're means you are.
- You're late.
- I think you're right.
Its and It's
This pair can be confusing because English usually uses apostrophes to show ownership. But here, the rule is different.
Its shows that something belongs to an animal, object, company, or other thing.
- The dog wagged its tail.
- The company changed its name.
It's means either it is or it has.
- It's (it is) raining.
- It's been (it has been) a long day.
Then and Than
These words look similar, but they have very different uses.
Then talks about time or what happens next.
- We ate dinner, then watched a movie.
- Back then, life was different.
Than is used when we compare two things.
- She is taller than me.
- This book is better than the first one.
To, Too, and Two
These three words sound the same, but their meanings are very different.
To shows direction, purpose or comes before a verb.
- I'm going to school.
- We came to tell you the news!
- I want to learn English.
Too means also or more than needed.
- I'd like to come too.
- The coffee is too hot.
Two is the number 2.
- I have two sisters.
Lose and Loose
These two words are often confused because they look almost the same.
Lose means to stop having something, fail to find something, or not win.
- Don't lose your keys.
- Our team lost the game.
Loose means not tight.
- These shoes are too loose.
- The button is loose.
Who's and Whose
These two words sound the same, but one is a short form and the other asks about ownership.
Who's means who is or who has.
- Who's calling?
- Who's finished the task?
Whose asks who something belongs to.
- Whose bag is this?
- Whose turn is it?
Less and Fewer
Both words mean a smaller amount, but they are used with different kinds of nouns, countable and uncountable.
Use less with things you cannot count one by one.
- Drink less coffee.
- We need less sugar.
- I have less time today.
Use fewer with things you can count.
- There are fewer cars today.
- I made fewer mistakes.
- We need fewer chairs.
Me and I
This mistake often appears when two people are mentioned together in a sentence.
Use I when the person is doing the action (the subject).
- Sarah and I went shopping.
- John and I finished the project.
Use me when the person receives the action (the object).
- The teacher helped Sarah and me.
- She invited John and me.
A tip: Remove the other person's name. If the sentence sounds wrong without the other name, the pronoun is probably wrong too.
The teacher helped I. - wrong
The teacher helped me. - correct
Good and Well
These words are connected, but they do different jobs.
Good is an adjective. It describes a person, thing, or experience.
- She's a good teacher.
- That was a good idea.
Well is an adverb. It describes how someone does something.
- She speaks English well.
- They worked well together.
We also use well to talk about health: I'm feeling well today.
Affect and Effect
These words are harder because they are connected in meaning. In most everyday sentences, one is a verb and the other is a noun.
Affect is a verb. It means to influence or change something.
- Lack of sleep affects your memory.
- Rain affected our plans.
Effect is a noun. It means the result of a change.
- The medicine had a good effect.
- The new law had little effect.
Lay and Lie
Even native speakers often confuse these verbs because their past forms are irregular. The biggest problem is that the past tense of lie is lay, while lay is also a different verb in the present tense.
Lie = rest in a horizontal position (does not take an object)
| Form | Verb |
|---|---|
| Base form - | lie |
| Past simple - | lay |
| Past partic. - | lain |
- I'm going to lie down.
- Yesterday I lay on the sofa.
- I have lain here for an hour.
Lay = put something somewhere (takes an object)
| Form | Verb |
|---|---|
| Base form - | lay |
| Past simple - | laid |
| Past partic. - | laid |
- Please lay the book on the table.
- She laid the book on the table yesterday.
- She has laid the book on the table.
A tip: You lie down, but you lay something down.
Accept and Except
These words sound similar, but their meanings are not connected at all.
Accept means to receive, agree to, or say yes to something.
- She accepted the invitation.
- I accept your apology.
- He accepted the job.
Except means not including.
- Everyone came except Tom.
- The shop is open every day except Sunday.
Quick Practice
To revise what we have learned, let's do a simple exercise and see how well you remembered the difference. Choose the correct word in each sentence:
- (Their / They're) coming tomorrow.
- Is this (your / you're) jacket?
- The dog hurt (its / it's) paw.
- She is taller (than / then) me.
- I have (two / too) brothers.
- Don't (lose / loose) your passport.
- The medicine had a good (affect / effect).
- (Who's / Whose) phone is ringing?
- There are (less / fewer) chairs today.
- Sarah and (me / I) finished the project.
- He speaks English (good / well).
- Please (lay / lie) your bag on the floor.
- Everyone came (accept / except) Anna.
Ready to see the answers? Don't worry if you didn't get many of them right - just scroll up and look through the article again to remember it better!
Answers
- They're
- your
- its
- than
- two
- lose
- effect
- Whose
- fewer
- I
- well
- lay
- except
Common English mistakes often come from words that sound the same, look similar, or follow unusual rules. The best way to learn them is to notice the difference in real sentences.
Start with a few groups at a time. Use the memory tips, check how the words appear in books and messages, and practice them in your own writing. Soon, forms like their/they're, your/you're, and less/fewer will become much easier to choose correctly.