10 English Mistakes That Make You Sound Unnatural (And How to Fix Each One)

There are two kinds of English mistakes.

The first kind breaks a grammar rule. A teacher marks it wrong. You fix it and move on.

The second kind is more interesting — and more important. These are mistakes that do not always break a rule, but they make you sound unnatural to a fluent English speaker. The sentence is understood, but something feels slightly off. The phrasing sounds like a translation. The word choice is close but not quite right.

These are the mistakes that hold back learners who have already reached an intermediate or advanced level. Grammar errors decrease over time with study. But unnatural phrasing can persist for years if nobody points it out.

This article covers ten of the most common ones — what they are, why they happen, and exactly how to fix each one.

1. Saying “I am agree” Instead of “I agree”

This is one of the most widespread errors among English learners at every level. In many languages, the equivalent of “agree” functions as an adjective — so learners naturally reach for “I am agree” by analogy with “I am happy” or “I am ready.”

But in English, agree is a verb, not an adjective. It does not need am or is.

The same pattern applies to similar verbs: I am understand should be I understand. I am know should be I know. When something is a verb in English, it does not need am/is/are to support it.

2. Using “Make” and “Do” Incorrectly

Both make and do translate to the same word in many languages, so learners often use them interchangeably. In English, they are not interchangeable — and mixing them up is one of the fastest ways to sound unnatural.

The general rule, though not perfect, is this:

• Use make when something is being created or produced
• Use do for tasks, activities, and work

The honest truth is that make and do collocations often have to be memorised individually — the rule helps, but there are exceptions. The more you read and listen to natural English, the more these combinations become instinctive.

3. Overusing “Very” to Intensify Adjectives

There is nothing grammatically wrong with very. But fluent English speakers use it far less often than learners do — because English has a rich set of stronger, more precise adjectives that already contain the intensity.

Using these stronger adjectives immediately makes your English sound more natural and expressive. When you learn a new adjective, always check whether there is a stronger version of it — and add that to your vocabulary too.

4. Saying “Discuss About” Instead of “Discuss”

This error comes from the logic of similar verbs. You talk about something. You think about something. So you discuss about something — right?

No. Discuss already contains the idea of “about” within it. Adding about is redundant and sounds immediately unnatural to a fluent speaker.

Other verbs with the same issue: mention about (should be mention), emphasise about (should be emphasise), explain about (usually should be explain).

5. Confusing “Say” and “Tell”

Both mean to communicate something verbally, but they work differently in a sentence — and mixing them up is extremely common.

• Say is used without a person directly after it, or with to + person
• Tell is always followed directly by the person you are speaking to

A simple test: if a person follows immediately after the verb, use tell. If not, use say.

6. Using “Congratulations” for Birthdays

This one surprises many learners. In several languages, the word for congratulations is used for birthdays, anniversaries, and other celebrations. In English, congratulations is used specifically for achievements — things someone actively did or accomplished.

7. Using the Wrong Preposition After Adjectives

Prepositions after adjectives are one of the trickiest areas of English — because they follow no consistent logical rule. They simply have to be learned as fixed combinations.

Here are some of the most commonly confused ones:

• Interested in (not interested to or interested about)
• Good at (not good in)
• Afraid of (not afraid from)
• Responsible for (not responsible of)
• Excited about (not excited for)
• Satisfied with (not satisfied from)
• Tired of (not tired from when expressing boredom or frustration)

The best way to learn these: when you encounter an adjective in your reading, note which preposition follows it. Over time, the correct combinations become automatic.

8. Translating Idioms Directly

Every language has idioms — fixed expressions where the meaning cannot be understood from the individual words. When learners translate idioms directly from their first language into English, the result is often confusing or unintentionally amusing.

The solution is not to avoid idioms altogether — idioms are a natural part of fluent English. The solution is to learn English idioms as complete, fixed units of meaning, rather than translating from your own language and hoping it works.

When you hear or read an idiom you do not recognise, look it up immediately. Never guess the meaning from the individual words.

9. Asking Questions with Wrong Word Order

Question formation in English trips up learners at every level. The most common error is using statement word order in a question.

In English questions, the auxiliary verb (do, does, did, is, are, was, were, will, can, have) comes before the subject. This is called subject-auxiliary inversion. It feels unnatural at first for speakers whose languages do not do this — but with practice it becomes automatic.

10. Using Continuous Tense with State Verbs

State verbs — verbs that describe a state rather than an action — do not normally use the continuous form in English. This is a rule that many learners do not learn until well into their studies, yet it affects everyday speech constantly.

State verbs include: have (possession), know, believe, understand, want, need, seem, love, hate, prefer.

Awareness Is the First Step

Most of these mistakes happen not because learners do not know English, but because they have never been made aware of them. Nobody corrected them. Nobody explained the rule clearly. And so the mistake became a habit.

The good news is that awareness is genuinely half the battle. Now that you know these ten patterns, you will start noticing them in your own speech and writing. That noticing — that moment of self-correction — is exactly how language improves.

The next step is practice: using the correct forms deliberately and consistently until they replace the old habits. That takes time. But it starts today.