The most common English mistakes are predictable: confusable words, verb tenses, word order, pronunciation and over-used idioms. They persist because nobody corrects them - fluent-sounding errors get understood, so they never get fixed. The remedy is targeted: keep a list of your own repeat mistakes and check for them deliberately when you write. Confidence matters too, since avoiding speech prevents the correction that fixes it.

For context: 67.0% of GCSE results in England in summer 2026 were grade 4 or above. — gov.uk, Qualification results in England, summer 2026

Learning English can be a challenging task, and even advanced learners can make mistakes from time to time. However, some mistakes are more common than others and can hinder your progress if not addressed. In this post, we'll explore some of the most common mistakes English learners make and provide tips on how to avoid them.

What are common mistakes?

What does confusing similar words involve?

- Common Confusions:

- 'affect' vs. 'effect'

- 'accept' vs. 'except'

- 'there', 'their', vs. 'they're'

- Tips to Avoid: Memorize the correct spelling and meaning of each word and practice using them in context.

What does mixing up verb tenses involve?

- Common Issue: Using present tense instead of past tense or vice versa.

- Tips to Avoid: Memorize the different verb tenses and practice using them in context.

What is incorrect word order?

- Example Mistake: Saying "Tonight I have to study" instead of "I have to study tonight."

- Tips to Avoid: Pay attention to the correct word order in sentences and practice using them in context.

What are pronunciation errors?

- Challenge: Pronunciation can often trip up English learners.

- Tips to Avoid: Listen to and imitate native speakers, and work on developing your own pronunciation skills through focused practice.

What does overusing idioms and slang involve?

- Potential Pitfall: Making your English sound unnatural or causing misunderstandings.

- Tips to Avoid: Focus on mastering basic vocabulary and grammar before incorporating more advanced language features.

Why does lack of confidence matter?

- Impact: Prevents learners from speaking or practicing their skills.

- Tips to Avoid: Practice speaking English regularly, take risks, and be open to making mistakes.

What should you do next?

Common mistakes are a natural part of the English learning process, and everyone makes them from time to time. By being aware of the most common mistakes English learners make, you can take steps to avoid them and improve your language skills. Remember to practice regularly, focus on building your confidence, and work on mastering basic vocabulary and grammar before moving on to more advanced language features. With persistence and dedication, you can improve your English language skills and achieve your language learning goals.

What else is worth reading?

What can this guide not tell you about one learner?

Language progress is uneven, and what works for one learner stalls for another. Nothing here is a timetable: the pace described is typical rather than expected, and assessment criteria are set by the awarding body, not by this page.

The number behind why reading for pleasure keeps coming up:

“Just 1 in 3 (32.7%) children and young people aged 8 to 18 said that they enjoyed reading in their free time in 2025.” — National Literacy Trust, Children and young people’s reading in 2025

What research supports these methods?

The study techniques on this page are not our opinion. Each comes from published cognitive-science research, linked here so you can read the original: