"I understand English but I can't speak it": what is actually happening and how it changes

"Only English is stopping me"

We hear some version of this sentence almost every week from working professionals. A software engineer with years of experience. A finance analyst who writes flawless reports. A nurse preparing to move to the Gulf. A parent asked to speak at the school annual day. A shop owner whose customers now include tourists. Their words in the first class are often similar: "I know the answer, but I go blank." "In my head it's clear, but when I speak, I forget everything."

If this is you, three things are worth knowing straight away.

1. It is extremely common, especially among people who learned English mainly through reading, writing and exams.
2. It has a clear explanation in how speech is produced.
3. It changes with the right kind of practice. Not more grammar. More speaking.

Recognition is not retrieval

When you read or listen, the words arrive ready-made. Your job is to recognise them. Recognition is fast and forgiving. You can understand "the deliverable has been deprioritised" without ever having said "deprioritised" yourself.

When you speak, nobody hands you the words. You have to:

1. Decide what you want to say.
2. Find the words for it.
3. Arrange them into a sentence with the right grammar.
4. Get your mouth to produce the sounds.
5. Listen to yourself and check it is coming out right.

All five happen in a second or two, while someone is waiting.

The psycholinguist Willem Levelt described this process in his classic book Speaking: From Intention to Articulation. In his model, a "conceptualiser" plans the message, a "formulator" turns it into words and grammar, and an "articulator" produces the sounds, while a monitor checks the output. In your first language, most of this is automatic. In a second language, the formulator often has to work consciously, and conscious work is slow.

That is why you can follow a fast conversation perfectly and still pause for a long time before your own answer. The two skills draw on different processes.

Why translating in your head makes it harder

Many professionals in India think first in Malayalam, Hindi, Tamil, Telugu, Marathi, Kannada or another language, then translate into English before speaking. This is entirely natural. It also adds a whole extra step to an already busy process:

Think in your first language → find the English words → check the grammar → speak → check again

Each step costs time. The listener sees a pause. You feel the pressure of the pause, and the pressure makes the next step harder.

Translation also creates a particular trap: sentences built word by word from another language often come out with a structure that feels wrong in English, so you stop to fix them, which means more pauses. The habit our coaches see most often is not bad grammar. It is checking every sentence before letting it out.

The fear loop

There is a second layer. Researchers Elaine Horwitz, Michael Horwitz and Joann Cope described "foreign language anxiety" in 1986 as a specific kind of anxiety tied to speaking a language you are still learning. They linked it to three fears: communication apprehension, test anxiety and fear of negative evaluation.

At work and in life, this often looks like:

• Staying silent on a call or at a family gathering even when you know what to say.
• Letting someone else make the phone call to the landlord, the doctor or the bank.
• Saying "sorry, sorry" after a small grammar slip, then losing your thread.
• Giving very short answers to avoid making mistakes.
• Rehearsing a sentence so many times that the moment passes.

Fear and the retrieval problem feed each other. Anxiety uses up mental attention, leaving less for finding words. Struggling to find words increases anxiety. This is why "just be confident" is not useful advice. Confidence follows practice, not the other way round.

Confidence follows practice, not the other way round.

What actually helps

1. Speak more, in a safe setting

The linguist Merrill Swain argued that understanding input is not enough; learners also need to produce language, because speaking makes you notice the gaps between what you want to say and what you can say. In a 1995 study with Sharon Lapkin, she described how running into a problem while speaking pushes learners to process language more deeply.

In practice this means you need regular speaking time, ideally with someone who can tell you, gently and specifically, what to change. Reading more, watching more series and learning more vocabulary lists all help understanding. They do not, on their own, build speaking.

2. Learn to talk round a missing word

The most common reason people stop mid-sentence is a single missing word. Native speakers lose words all the time; they simply describe their way round them. Linguists call this circumlocution, and Zoltán Dörnyei's research in the 1990s suggested it is one of the most teachable communication strategies.

Instead of freezing:

"We need to, um, what's the word..." (silence)

Try:

"We need to... the thing where we check the code before release. The review step. Yes, we need to finish that."

Useful lines for getting round a gap:

• "It's a kind of..."
• "It's the thing you use to..."
• "It's similar to..."
• "What I mean is..."
• "Let me put it another way."

The listener rarely notices. You keep going. That alone changes how fluent you sound.

3. Stop checking every sentence

Practise speaking for 60 to 90 seconds on a work topic without stopping to correct yourself. Record it. Listen once, note one thing to fix, and record again. The goal is to separate speaking from editing. Fluent speakers edit lightly and later, not constantly and in the middle.

4. Build sentences you will actually need

Generic vocabulary lists rarely help in a client call. Instead, build a small bank of sentences for your real situations:

• Describing your role: "I lead the reconciliation team. We make sure what the bank reports matches what the client sees."
• Giving an update: "We're on track for Friday, with one risk."
• Asking for time: "Good question. Let me think for a second."
• Disagreeing: "I see it a little differently."
• Saying hello to a neighbour abroad: "Hi, I'm Divya. We've just moved into number 12."
• Explaining a symptom: "The pain started on Tuesday, and it gets worse at night."

When the sentence frame is ready, you only need to fill in the details. That removes most of the load.

5. Practise thinking in English in small doses

You do not need to stop thinking in your first language. You need a few minutes a day where English is the language in your head. Try describing what you are doing as you cook or drive. Summarise a film or a phone call to yourself in English on the way home. Short and regular beats long and rare.

What progress actually looks like

Progress is rarely dramatic. In our coaching, the first changes are usually small and practical: answers that last longer before stopping, a pause that is shorter, a missing word that gets described instead of abandoned, a slip that is let go instead of apologised for. Polish comes later. Length and structure come first.

It is also uneven. You may speak well on Monday and freeze on Thursday in front of a new senior. That is not failure. It is how a skill under construction behaves under pressure.

A word about accent and grammar

Two worries often hold people back.

Accent. Your accent is not the problem. The aim is to be understood first time, which is mostly about pace, stress and pausing, not sounding American or British.

Grammar. Small slips matter much less to listeners than you think. A clear point with one wrong article is understood. A perfect sentence never spoken is not.

Sources

1. Willem J. M. Levelt, Speaking: From Intention to Articulation, MIT Press, 1989 (publication record at the Max Planck Institute for Psycholinguistics). www.mpi.nl/publications/item67053/speaking-intention-articulation
2. Elaine K. Horwitz, Michael B. Horwitz and Joann Cope, Foreign Language Classroom Anxiety, The Modern Language Journal, 70(2), 125 to 132, 1986. doi.org/10.2307/327317
3. Merrill Swain and Sharon Lapkin, Problems in Output and the Cognitive Processes They Generate: A Step Towards Second Language Learning, Applied Linguistics, 16(3), 371 to 391, 1995. academic.oup.com/applij/article-abstract/16/3/371/162512
4. Zoltán Dörnyei, On the Teachability of Communication Strategies, TESOL Quarterly, 29(1), 55 to 85, 1995. doi.org/10.2307/3587805

Published by The Full Stop, the journal of Brightside English. Reviewed by a Brightside senior coach. Corrections: see our editorial standard.