Common English Mistakes and How to Fix Them Fast

Why mistakes are the fastest way to learn

Let's get one thing straight before the list. Common English mistakes are not a sign that you are bad at English. They are a sign that you are using it. The learners who never make mistakes are the ones sitting quietly with a textbook, and they are also the ones who stay stuck for years.

Here is the uncomfortable truth. You cannot fix an error you never make out loud. When you keep every sentence inside your head, the wrong bits hide. Your brain is generous. It quietly patches the meaning so the sentence feels fine to you, even when it isn't. The only way to drag those errors into the light is to say them where someone, or something, can catch them.

And timing matters more than most people think. If you say "I am agree" and get corrected two weeks later on a worksheet, the correction feels abstract. If you say "I am agree" and hear "just I agree, drop the am" one second later, your memory ties the fix to the exact moment you spoke. That is why getting corrected in real time beats silent study. It is not that reading is useless. It is that reading alone lets the same mistake survive a hundred repetitions before anyone flags it.

So read this whole guide, yes. But treat it as a warm-up. The real gains come when you take these patterns into a live conversation and let them get corrected as you go.

Articles: a, an, and the

Articles are the number one headache for learners whose first language does not use them. Russian, Mandarin, Japanese, Korean, and Polish speakers, this section is for you. English sprinkles "a," "an," and "the" everywhere, and dropping them or adding extra ones is one of the most common English mistakes there is.

Use "a" or "an" when you mention something for the first time or when it is one of many. Use "the" when both you and the listener already know which specific thing you mean. Use "an" before a vowel sound, not just a vowel letter.

Wrong vs right

• Wrong: I am student. Right: I am a student.
• Wrong: I saw an movie yesterday. Right: I saw a movie yesterday.
• Wrong: Can you pass me salt? Right: Can you pass me the salt. (You both know which salt, the one on the table.)
• Wrong: He is an university teacher. Right: He is a university teacher. (University starts with a "yoo" sound.)

Quick fix: When you name a thing, ask yourself two fast questions. Is it the first time I mention it? Then "a" or "an." Does my listener already know exactly which one? Then "the." Say the noun with the article glued to the front so it becomes one chunk in your mouth: "a-coffee," "the-manager," "an-hour."

Prepositions: in, on, at

Prepositions are small words that refuse to translate cleanly. Your first language put a preposition somewhere, English puts it somewhere else, and no amount of logic fully explains why. You depend "on" someone in English, not "of" them. You are good "at" something, not good "in" it. This is one of those areas where making mistakes out loud, hearing the natural version, and repeating it beats memorizing a chart.

For time and place, a rough guide helps. Use "at" for a specific point (at 5pm, at the door). Use "on" for a surface or a day (on the table, on Monday). Use "in" for an enclosed space or a longer period (in the room, in July, in 2026).

Wrong vs right

• Wrong: I will call you in Monday. Right: I will call you on Monday.
• Wrong: She is good in math. Right: She is good at math.
• Wrong: We arrived to the airport. Right: We arrived at the airport.
• Wrong: I depend of my parents. Right: I depend on my parents.
• Wrong: Listen me. Right: Listen to me.

Verb tenses that get mixed up

Tense mistakes are where a small slip can actually change your meaning, so these are worth fixing early. The three that cause the most trouble are the past simple versus the present perfect, the missing "s" on he or she in the present, and using present when you mean past.

Present simple: don't forget the s

In the present simple, "he," "she," and "it" take an "s" on the verb. Learners drop it constantly because their first language does not change the verb this way.

• Wrong: She work in a bank. Right: She works in a bank.
• Wrong: He don't like coffee. Right: He doesn't like coffee.

Past simple vs present perfect

Use the past simple when you say exactly when something happened. Use the present perfect when the time is not stated or the result still matters now.

• Wrong: I have seen him yesterday. Right: I saw him yesterday. (Yesterday is a finished time, so use past simple.)
• Wrong: I lived here since 2020. Right: I have lived here since 2020. (It started in the past and continues now.)

The "I am agree" trap

"Agree" is already a verb, so it does not need "am." This one is extremely common among Spanish, French, Italian, and Arabic speakers.

• Wrong: I am agree with you. Right: I agree with you.
• Wrong: I am not agree. Right: I don't agree. or I disagree.

Quick fix: Pick three verbs you use daily (work, go, have) and drill the he/she form out loud until the "s" is automatic. For tense, ask "do I say a specific time?" If yes, past simple. If the action still touches now, present perfect.

Its vs it's

This one catches native speakers too, so you are in good company. The rule is short. "It's" with an apostrophe means "it is" or "it has." "Its" without an apostrophe shows possession. The apostrophe is not doing its usual possessive job here, which is exactly why everyone gets confused.

Wrong vs right

• Wrong: Its raining outside. Right: It's raining outside. (It is raining.)
• Wrong: The company changed it's name. Right: The company changed its name. (Possession.)
• Wrong: Its been a long day. Right: It's been a long day. (It has been.)

Quick fix: Try to expand the word to "it is" or "it has." If the sentence still makes sense, you need "it's" with the apostrophe. If it turns into nonsense, you need "its." Test the raining example: "it is raining" works, so "it's." Test the name example: "the company changed it is name" is nonsense, so "its."

Much vs many

Use "many" for things you can count one by one. Use "much" for things you cannot count as separate units. The same split controls "few" versus "little" and "number of" versus "amount of."

Wrong vs right

• Wrong: How much people were there? Right: How many people were there? (People are countable.)
• Wrong: I don't have many time. Right: I don't have much time. (Time is uncountable.)
• Wrong: There were too much cars. Right: There were too many cars.

Quick fix: Before you say "much" or "many," ask "can I count this with numbers?" Three cars, yes, so "many." You cannot say three waters (well, unless you mean glasses), so "much water." One trick: if the noun can be plural, it is usually "many."

Say vs tell

These two feel identical to learners but English keeps them apart with a simple pattern. You "tell" a person something. You "say" something, often with "to" before the person. In short, "tell" wants a listener right after it, "say" usually does not.

Wrong vs right

• Wrong: He said me the news. Right: He told me the news. or He said the news to me.
• Wrong: She told that she was tired. Right: She said that she was tired.
• Wrong: Can you say me your name? Right: Can you tell me your name.

Quick fix: Remember the shape "tell + someone." If a person comes right after the verb, use "tell." If not, use "say." Also learn the fixed pairs: tell a story, tell the truth, tell a lie, tell the time. Say hello, say sorry, say yes.

False friends

False friends are words that look like a word in your first language but mean something different in English. They are sneaky because you feel confident right up until the room goes quiet. This is a common English mistake for speakers of Spanish, Portuguese, French, German, and many other languages that share roots with English.

Some classic traps

• Spanish embarazada means pregnant, not embarrassed. Wrong: I am embarrassed when you mean pregnant. Right: I am pregnant.
• Spanish and Portuguese actualmente means currently, not actually. Right in English: Currently I live in Berlin.
• French assister means to attend, not to assist. Right: I attended the meeting.
• German bekommen means to get or receive, not to become. Wrong: I will become a coffee. Right: I will get a coffee.
• Italian libreria is a bookshop, not a library. English library is where you borrow books for free.

Word order

English is strict about word order. The basic pattern is subject, then verb, then object. Adjectives go before the noun, not after it. And when you ask a question, you usually flip the subject and the helping verb. Keeping your first language word order is one of the most common English mistakes for speakers of Romance languages, where adjectives often follow the noun.

Wrong vs right

• Wrong: I want to buy a car red. Right: I want to buy a red car. (Adjective before noun.)
• Wrong: You know where is the station? Right: Do you know where the station is. (In the second half, keep normal order.)
• Wrong: Always I drink coffee in the morning. Right: I always drink coffee in the morning. (Adverb goes after the subject.)
• Wrong: Why you are late? Right: Why are you late? (Flip the subject and verb in a direct question.)

Quick fix: Say the core three-word skeleton first, subject verb object, then hang the extras on it. "I drink coffee" is the spine. Now add "always" after the subject and "in the morning" at the end. Build outward from a correct core and the order sorts itself out.

Pronouncing the th sound

The "th" sound does not exist in most languages, so learners swap it for the closest sound they know. That usually turns into "s," "z," "t," "d," or "f." The result is understandable but marks you instantly as a learner, and sometimes it changes the word entirely. "Think" becomes "sink," "three" becomes "tree," "with" becomes "wif."

There are actually two th sounds. The soft one, with no voice, in think, bath, and three. The buzzing one, with voice, in this, mother, and they. For both, your tongue tip touches lightly between or just behind your top teeth while air flows out.

Practice pairs

• think / sink
• thin / tin
• they / day
• breathe / breeze
• three / tree

Quick fix: Put your tongue tip against the back of your top teeth, then push air. For the voiced version, hum at the same time so you feel a buzz. Record yourself saying "I think this is the third one" and play it back. Your ear will catch the slip your mouth missed. This is another spot where saying it out loud and getting corrected in real time is the only thing that moves the needle.

Run-on sentences

A run-on happens when you join two full ideas without the right punctuation or connector, usually with just a comma. In speech it shows up as one long breathless sentence that never lets the listener catch up. It is common because in many languages a comma can link ideas that English wants split.

Wrong vs right

• Wrong: I was tired, I went home. Right: I was tired, so I went home. or I was tired. I went home.
• Wrong: The food was great the service was slow. Right: The food was great, but the service was slow.
• Wrong: She called me she wanted to talk. Right: She called me because she wanted to talk.

Quick fix: When two complete ideas meet, join them with a word like "and," "but," "so," or "because," or just make two sentences with a full stop. When you speak, let yourself pause. A short silence between ideas is not a weakness. It gives your listener room and it stops the run-on before it starts.

Which mistakes actually matter

Not every error carries the same weight, and treating them all as equal is a fast way to burn out. Some mistakes change what you mean. Others just sound a little off but leave your meaning perfectly clear. If you only have limited practice time, spend it on the first kind.

Think about a mistake that changes meaning. If you say "I will get a coffee" versus "I will become a coffee," one of those makes the waiter blink. If you mix up past and present in "I saw him" versus "I see him," your listener genuinely does not know when it happened. Those are worth fixing today, because they cause real confusion in a phone call, a job interview, or an order at a counter.

Now think about the small stuff. Dropping an article in "I am student" is technically wrong, but every listener on earth understands you instantly. A missing "the" almost never causes a misunderstanding. It marks you as a learner, sure, but it does not break the message. So fix it, just fix it later.

A simple priority order

1. Fix first: wrong word, wrong tense, and false friends. These change your meaning and can cause real mix-ups.
2. Fix next: say vs tell, much vs many, and word order in questions. These sound noticeably off and sometimes confuse.
3. Fix last: a missing article, a dropped "s," a slightly wrong preposition. Small polish that rarely breaks meaning.

This order is freeing. It means you can walk into a real conversation today with imperfect English and still be understood, as long as you get the meaning-carrying words right. Perfection is not the goal. Being clear is the goal, and clarity comes way before polish. The polish arrives on its own once you have spoken enough and been corrected enough times.

The big correction table

Here is the whole list in one place. Skim it now, then come back and cover the right column with your hand and try to fix each wrong sentence out loud. If you stumble, that is the sentence to practice.

How to actually fix these fast

Reading a list of common English mistakes feels productive, but recognition is not the same as production. You can nod along at every "its vs it's" example and still fumble it the moment you open your mouth. That gap between knowing and doing only closes with output. You have to produce the language, catch the slip, and try again while it is still warm.

So here is a simple loop that works. Speak a few sentences about your day. The moment something gets flagged as wrong, say the corrected version right away, out loud, twice. Then use it again in a new sentence before you move on. That last step matters. Repeating the exact fixed sentence is good, but using the pattern in a fresh sentence proves you actually learned the rule and not just the one example.

Do this for ten minutes a day and you will beat someone doing an hour of silent grammar drills. The silent student is polishing sentences that already came out right. You are hunting down the ones that come out wrong, which are the only ones worth fixing. This is the whole reason getting corrected in real time works. The feedback lands while your brain still remembers exactly what it was trying to say.

If you want a partner for that loop, this is exactly what our app is built for, and you can see the plans on the pricing page. It listens while you talk, corrects you the instant you slip, and keeps you speaking instead of scrolling. For more on the mindset that makes this work, read our piece on making mistakes while learning a language. It pairs well with everything above.

One last thing. Do not try to fix all ten of these at once. Pick your two worst, the ones you saw yourself in while reading, and hammer those this week. Next week, pick two more. Stacking small wins beats drowning in the whole list. Your English does not need to be perfect. It needs to be spoken, corrected, and spoken again.