Every CEFR level has its own characteristic mistakes. They’re not random — they follow patterns that emerge from how learners process the language at each stage.
The A1 learner directly translates from their native language. The B1 learner overgeneralizes grammar rules. The C1 learner overcomplicates. Each level has a specific set of errors that, once fixed, unlock the next stage.
This guide organizes those mistakes by level. Find where you are, fix those errors, and move up.
- A1–A2: Direct translation from native language, basic verb conjugation, word order
- B1: Collocation errors, preposition confusion, false friends
- B2: Dependent prepositions, gerund vs infinitive, register mixing
- C1: Transition word overuse, false formality, stative verb errors
- C2: Hypercorrection, overly complex sentences, subtle register mistakes
A1 — Beginner Mistakes
A1 errors come from one source: direct translation from your native language. You think in your first language and convert to English word-by-word.
The Five Most Common A1 Errors
1. Age: “I have 25 years” ❌
In most languages, age is something you “have.” In English, you are your age.
✅ “I am 25 years old.”
2. “Go to home” ❌
“Home” is special in English. After movement verbs (go, come, walk, run), you don’t use “to.”
✅ “I go home.” / “I came home.” / “She walked home.”
But: “I go to my house.” (because “house” is a regular noun)
3. Subject-verb agreement: “She go” ❌
For he/she/it in present simple, the verb takes an -s.
✅ “She goes.” / “He works.” / “It rains.”
4. “I am agree” ❌
“Agree” is a verb, not an adjective. No “am” needed.
✅ “I agree.” / “I don’t agree.”
5. Negatives: “I no have” ❌
English negatives need “don’t” or “doesn’t,” not “no.”
✅ “I don’t have money.” / “She doesn’t know.”
How to Fix A1 Mistakes
The fix for all of these: Learn full sentences instead of words. Don’t learn “have” — learn “I have a car.” Don’t learn “go” — learn “I go to work.” When you learn words in their natural grammatical context, you absorb the rules unconsciously.
A2 — Elementary Mistakes
A2 learners know more vocabulary but still struggle with word order, prepositions, and choosing between similar words.
The Five Most Common A2 Errors
1. “I very like it” ❌
Adverb placement is different in English compared to many languages. “Very” cannot go before the verb.
✅ “I like it very much.”
Other similar patterns: “I really like it” ✅, “I like it a lot” ✅
2. “I am agree with you” ❌ (carries over from A1)
This mistake is stubborn. If you’re still saying this at A2, retrain yourself.
✅ “I agree with you.”
3. “I have 3 years that I study” ❌
The “for + duration” structure is different from many languages.
✅ “I have been studying for 3 years.”
4. Say vs Tell Confusion
| Correct | Incorrect |
|---|---|
| ”She said she was tired." | "She told she was tired.” ❌ |
| “She told me she was tired.” ✅ | “She said me she was tired.” ❌ |
Rule: “Tell” needs an object. You tell someone something. “Say” can be used without a listener.
5. “I went to home” ❌ (persistent from A1)
Some A1 errors persist into A2. This is the most common one.
✅ “I went home.”
B1 — Intermediate Mistakes
B1 learners have enough vocabulary to express complex ideas, but accuracy drops as they attempt more difficult structures. This is where collocation errors, preposition confusion, and false friends appear.
The Five Most Common B1 Errors
1. “I recommend you to read this book” ❌
“Recommend” doesn’t take “to” + person.
✅ “I recommend reading this book.” ✅ “I recommend that you read this book.”
Same pattern: suggest, propose, insist.
2. “It depends of the situation” ❌
“Depend” takes “on,” not “of.”
✅ “It depends on the situation.”
Other confusing prepositions: “arrive at” (a place), “arrive in” (a city/country), “insist on”
3. “I am used to wake up early” ❌ vs “I used to wake up early” (two different meanings!)
These look similar but mean different things:
| Phrase | Meaning | Example |
|---|---|---|
| ”Used to” + infinitive | Past habit (no longer true) | “I used to smoke.” (I don’t anymore) |
| “Be used to” + gerund | Be accustomed to | ”I am used to waking up early.” (It’s normal for me) |
4. “I have visited there before 5 years” ❌
“For” + duration vs “ago” + past simple is a common confusion.
✅ “I visited there 5 years ago.” (specific time in the past — use past simple) ✅ “I have lived here for 5 years.” (continuing to now — use present perfect)
5. “I look forward to hear from you” ❌
“Look forward to” — the “to” is a preposition, not part of the infinitive.
✅ “I look forward to hearing from you.”
B2 — Upper Intermediate Mistakes
B2 errors are about nuance. You know the rules, but you apply them incorrectly in subtle contexts.
The Five Most Common B2 Errors
1. “I am used to work hard” ❌ (again!)
This trick error persists from B1 into B2. The “-ing” form after “used to” (when meaning “accustomed to”) is one of the last prepositional patterns learners master.
✅ “I am used to working hard.”
2. “Despite of the rain” ❌
“Despite” and “in spite of” mean the same thing but have different structures.
✅ “Despite the rain, we went out.” (no “of”) ✅ “In spite of the rain, we went out.” (with “of”)
3. “I look forward to meet you” ❌ (yes, again)
This error persists because “to” is usually followed by a verb in its base form. The exception: when “to” is a preposition.
✅ “I look forward to meeting you.”
4. “She suggested me to apply” ❌
“Suggest” follows a different pattern than many learners expect.
✅ “She suggested that I apply.” (subjunctive) ✅ “She suggested applying.” (gerund) ❌ “She suggested me to apply.”
5. Double comparatives: “It’s more better” ❌
“More” + comparative is redundant.
✅ “It’s better.” ✅ “It’s much better.” (use “much” for emphasis, not “more”)
C1 — Advanced Mistakes
C1 learners make fewer mistakes, but the ones they make are more noticeable. They overcomplicate things. They use big words where small ones would work. They overuse transition words.
The Five Most Common C1 Errors
1. Transition word overuse
C1 learners discover transition words (moreover, furthermore, nevertheless, consequently) and use them in every other sentence. This makes writing feel mechanical.
Fix: Use one transition word per paragraph maximum. Most of the time, the logical connection is clear without them.
2. False formality: “utilize” instead of “use”
C1 learners often reach for the longest word when a short one works better.
| Too Formal | Better |
|---|---|
| ”We will utilize the new system." | "We will use the new system." |
| "I will commence the work." | "I will start the work." |
| "Please inform me." | "Please let me know.” (less formal) |
The rule: Use the simple word unless you have a specific reason to use the formal one. “Use” is almost always fine. “Utilize” should be saved for when you’re using something in a way that wasn’t its original purpose.
3. Stative verbs in continuous forms
“I am agreeing with you” or “I am knowing the answer.”
Stative verbs (agree, believe, know, understand, want, need, love, hate) don’t take continuous forms — except in very specific contexts.
✅ “I agree with you.” ✅ “I know the answer.” ✅ “I am understanding more now.” (This one works — “understand” can be dynamic in some contexts)
4. “According to me” ❌
“According to” is for citing external sources, not your own opinion.
✅ “In my opinion, this is the best approach.” ✅ “From my perspective, the situation looks different.” ❌ “According to me, this is wrong.”
5. “The reason is because” ❌
This is redundant. “Reason” and “because” say the same thing.
✅ “The reason is that the system failed.” ✅ “This failed because the system crashed.” ❌ “The reason is because the system crashed.”
C2 — Mastery Level “Mistakes”
At C2, mistakes are rare and subtle. What looks like a mistake is often hypercorrection — applying a rule too broadly, or choosing the wrong register for the context.
The Most Common C2 Errors
1. Hypercorrection
You’ve learned a rule so well that you overapply it.
Example: “It is I” instead of “It’s me.” Technically correct grammar, but sounds stilted in conversation. Native speakers say “It’s me.”
2. Overly complex sentences
C2 learners can write sentences with three subordinate clauses, and sometimes they do. The result is technically correct but hard to read.
Fix: Aim for one idea per sentence. Complexity is not the same as sophistication.
3. Register mismatch
Using formal vocabulary in casual conversation, or informal vocabulary in academic writing.
In a formal email: “Hey, just wanted to chat about the project.” ❌ In a text to a friend: “I would like to request your presence at dinner.” ❌
Fix: Match your vocabulary to your audience. Academic writing needs formal register. Casual conversation needs casual register.
4. “Disinterested” vs “Uninterested”
“Disinterested” means impartial. “Uninterested” means bored. Most native speakers get this wrong too, but at C2, you’re held to a higher standard.
“A judge must be disinterested.” (impartial) ✅ “He was uninterested in the lecture.” (bored) ✅
5. “Less” vs “Fewer”
“Less” is for uncountable nouns. “Fewer” is for countable nouns.
“I have less time.” (time is uncountable) ✅ “I have fewer books.” (books are countable) ✅ “I have less books.” ❌ (very common error, even among native speakers)
Master Error Reference Table
| Level | Most Common Mistake | The Fix |
|---|---|---|
| A1 | ”I have 25 years" | "I am 25” |
| A1 | ”I no have" | "I don’t have” |
| A1 | ”She go" | "She goes” |
| A2 | ”I very like" | "I like it very much” |
| A2 | Say vs Tell | Tell needs an object |
| A2 | ”I have 3 years that" | "I have been… for 3 years” |
| B1 | ”Recommend you to" | "Recommend that” or gerund |
| B1 | ”Depends of" | "Depends on” |
| B1 | ”Used to wake up” vs “Used to waking up” | Learn the two patterns |
| B2 | ”Despite of" | "Despite” (no “of”) |
| B2 | ”Suggested me to" | "Suggested that” |
| B2 | ”More better" | "Much better” |
| C1 | Transition word overuse | One per paragraph max |
| C1 | ”According to me" | "In my opinion” |
| C1 | ”The reason is because" | "The reason is that” |
| C2 | Register mismatch | Match vocabulary to context |
| C2 | ”Disinterested” for “Uninterested” | Disinterested = impartial |
How to Fix Your Mistakes
- Identify your level using the CEFR self-assessment
- Focus on your level’s mistakes — ignore errors from other levels for now
- Practice the correction — write 5 sentences using the correct form
- Record yourself — say the correct form out loud 3 times
- Get feedback — use a language partner or AI to check your usage
Most mistakes disappear within two weeks of conscious practice. The key is noticing them in real time. When you catch yourself saying “I have 25 years,” stop, correct yourself, and move on. That moment of correction is worth more than an hour of grammar exercises.
What to Read Next
- CEFR Vocabulary Levels Explained: From A1 to C2 — The complete vocabulary guide with self-assessment
- Understanding English Collocations — Why “make a decision” is correct but “do a decision” isn’t
- 5 Ways to Build English Vocabulary Daily — Practical routines to retain what you learn
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