Blog/Why I Understand English but Can’t Speak It

April 29, 2026

Vastny Languages editorial team· updated May 19, 2026

Why I Understand English but Can’t Speak It

If you understand texts and videos but can’t speak quickly, that’s completely normal. Understanding and speaking are different skills. For comprehension, it’s enough to recognize a word. For speaking, you have to pull it from memory, place it into a phrase, and say it without long translation.

That’s why someone can read articles in English but freeze in a simple conversation. The problem is not a lack of knowledge. The problem is that the knowledge is passive.

What passive vocabulary is

Passive vocabulary is the words you recognize when you see or hear them. Active vocabulary is the words you can use yourself.

For example, you know the word important when you see it in a text. But in conversation, you may not be able to quickly say: It is important for me. That means the word has not become active yet.

How to turn words into speech

You need to add one extra step to flashcards: say your own sentence.

Flashcard: meeting.

Don’t stop at the translation “meeting.” Say: I have a meeting tomorrow. Then say another sentence: The meeting starts at ten.

That’s how the word starts working in speech.

Start with sentence patterns

Speaking is easier when you have ready-made sentence starters:

  • I think...
  • I need...
  • I want to...
  • I am not sure...
  • Can you...?
  • Could you...?

Put familiar words into these patterns. Don’t try to speak complicated sentences right away.

What to do every day

Take 5 words from your review list and make one sentence with each word out loud. It will take 3–5 minutes, but little by little your passive vocabulary will start becoming active.

Understanding English is a good stage. The next step is to turn familiar words into short, personal sentences more often.

Practise right after the article

Do not just read — remember the words with cards

Try a few cards here. Then sign up to save lists, continue reviewing, and return to difficult words.

Try 20 cards right here

A quick way to try spaced review: see a word, reveal the answer, mark difficult cards, and continue in Learn.

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