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I understand English but I cannot speak it: five reasons, and what fixes them

2026-09-20 · 5 min read

Why listening and reading come easily while speaking locks up — and which of the five causes clear in a month.

This is the most common complaint adult learners have: I watch series almost without subtitles, I read articles, and then I try to say one simple sentence and freeze. Usually it is not one cause but several at once.

Here are all five. Three of them clear quickly.

1. Passive and active vocabulary are different things

Recognising a word on a page and pulling it out of your head in under a second are two separate skills. The average adult's passive vocabulary is about five times the active one: you understand twelve thousand words and use two.

That is normal, and it is true of native speakers too. The problem starts when you only ever learn passively — reading, watching, noting new words — and the active side never grows at all.

What helps: a word becomes active when you have built a sentence with it out loud. Not translated it, not recognised it — said it, inside your own sentence, five or six times in different contexts.

2. You are translating, not speaking

Inside your head runs a chain: think of the sentence in your language → translate → check the grammar → say it. Four steps where there should be one. By the time it is ready, the conversation has moved on.

Translation is a useful skill in itself, but it has nothing to do with speaking. Interpreters train it separately, for years.

What helps: start from the thought you can already express, not the one you want to express. Ten plain sentences without a pause beat one perfect sentence fifteen seconds late.

3. What is missing is not words but structures

People assume they cannot speak because their vocabulary is too small. It almost never is.

To say "I would have gone if I had known" you need three A1 words — go, if, know — and one structure that is not in your head. The vocabulary is there; the frame is not.

What helps: learn grammar one construction at a time, taking each to the point of automaticity, rather than as a list of rules. This is exactly why Murphy is built the way it is: every topic rests on the one before, and nothing is introduced before its foundation exists.

4. Fear of mistakes outweighs the wish to speak

Adults do not enjoy looking foolish. A child speaks badly and does not mind; an adult stays quiet until sure — and therefore gets no practice, and therefore never becomes sure. The circle closes.

There is a second cut here: usually nobody corrects you. You say it wrong, you are understood, and the mistake sets. A year later it is part of your English.

What helps: an environment where a mistake costs nothing and correction is immediate. A friendly conversation partner rarely corrects you — it would be rude. A teacher does, but costs money and keeps a timetable.

5. Your mouth is out of training

Physical, and real. English sounds ask for different movements of the tongue and lips. th, the gap between ship and sheep, the dark l — the muscles have never done these.

If you have only ever read with your eyes and never spoken aloud, the first attempt feels like your mouth will not obey. That is not knowledge. That is motor skill.

What helps: say things out loud from day one. Not in your head. Out loud.

What clears fast

Notice that four of the five are cured by the same thing: speaking regularly, out loud, with immediate correction. Not reading, not watching, not another vocabulary app.

Why ordinary apps do not help here

In most language apps you tap the right option. That trains recognition — the passive skill you already have plenty of. You will not start speaking afterwards, because you never once built the sentence yourself.

Lymi works the other way round: you speak aloud from the first lesson, and you are heard and corrected — in your own language, so the explanation actually lands. The grammar follows Murphy's order, one construction per lesson, each of them spoken until it is yours.