How to Say I Don't Understand in French (Je Ne Comprends Pas)

I don’t understand in French is je ne comprends pas — arguably the most valuable survival phrase there is, because it unlocks help. But the textbook version and the version French people actually say differ by one dropped word, and the real skill isn’t just saying “I don’t understand” — it’s the follow-up phrases that get someone to slow down, repeat, or speak English. This guide covers all of it.

The main way to say it

Je ne comprends pas — pronounced zhuh nuh kohn-prahn PAH.

Pronunciation notes:

• Je is “zhuh” — a soft “zh” like the s in “measure.”
• Comprends is nasal: kohn-PRAHN, with the -ds silent.
• Pas is “pah” — the s stays silent.
• The whole thing rides on the ne… pas sandwich around the verb, which is how French makes things negative.

The casual version (what people say)

In everyday spoken French, the ne is very often dropped:

• Je comprends pas (zhuh kohn-prahn PAH) — the natural, casual spoken form. Grammatically “incomplete,” universally used.
• J’comprends pas — even more clipped, very colloquial.

Both are fine in conversation. Keep the full je ne comprends pas for writing and formal situations.

The essential follow-ups

“I don’t understand” is only step one. These get you unstuck:

• Pouvez-vous répéter, s’il vous plaît ? (poo-vay voo ray-pay-TAY) — “Can you repeat, please?”
• Pouvez-vous parler plus lentement ? (par-lay plew LAHNT-mahn) — “Can you speak more slowly?”
• Je ne comprends pas bien — “I don’t understand well” (softer, “I’m partly lost”).
• Qu’est-ce que ça veut dire ? (kess kuh sah vuh DEER) — “What does that mean?”
• Comment dit-on… en français ? — “How do you say… in French?”
• Vous parlez anglais ? (voo par-lay ahn-GLAY) — “Do you speak English?”
• Je débute en français — “I’m a beginner in French” (buys patience).
• Pardon ? — a quick “sorry, what?” when you missed one thing.

Hear it in context

Lost in a fast explanation (polite):

— …et donc il faut composter le billet avant de monter. — Pardon, je ne comprends pas. Pouvez-vous parler plus lentement ? — Bien sûr. Vous devez valider votre billet avant le train. — Ah, d’accord, merci !

…and so you have to validate the ticket before boarding. — Sorry, I don’t understand. Can you speak more slowly? — Of course. You have to validate your ticket before the train. — Ah, okay, thanks!

Asking what a word means (casual):

— C’est un truc un peu chelou, ça. — Attends, je comprends pas. Ça veut dire quoi, “chelou” ? — Ah, ça veut dire “bizarre.” C’est de l’argot.

That’s a bit sketchy, that. — Wait, I don’t get it. What does “chelou” mean? — Oh, it means “weird.” It’s slang.

Common mistakes

• Over-pronouncing the ne and pas. In speech the ne is usually dropped entirely (je comprends pas) and the s in pas is silent.
• Saying je ne comprends pas and stopping. Without a follow-up, the other person just repeats exactly what they said. Chain it with plus lentement or pouvez-vous répéter.
• Confusing comprends with entends. Je ne comprends pas = “I don’t understand.” Je n’entends pas = “I can’t hear you.” Different problems, different fixes.
• Defaulting to English too fast. A polite je ne comprends pas, pouvez-vous répéter ? keeps you in French and earns goodwill; leaping straight to vous parlez anglais ? can feel like giving up.
• Forgetting pardon ? For missing just one word, a simple rising-tone pardon ? is quicker and more natural than the full sentence.

A Parisian note

Parisians have a reputation for impatience with fumbling French — but the reliable unlock is showing you’re trying. Open with bonjour, admit “je débute en français” or “je ne comprends pas bien, désolé,” and most people soften immediately and slow down. The phrase that genuinely turns the tide is “pouvez-vous parler plus lentement, s’il vous plaît ?” — it signals effort and humility at once. What grates is switching to English before even attempting French. Even a clumsy attempt followed by an honest je ne comprends pas reads as respect, and respect is the currency that gets Parisians on your side.

Related phrases

• How to say can you help me in French — the natural next request when you’re lost.
• How to say excuse me in French — the pardon ? that flags you missed something.
• Build your survival toolkit further with our guide to common French phrases.

FAQ

How do French people casually say “I don’t understand”? In everyday speech they drop the ne: je comprends pas (or even j’comprends pas). The full je ne comprends pas is correct and used in writing and formal settings, but the ne-less version is what you’ll hear in conversation.

How do I ask someone to speak more slowly? Pouvez-vous parler plus lentement, s’il vous plaît ? (“Can you speak more slowly, please?”). It’s the most useful follow-up to je ne comprends pas — otherwise people just repeat at the same speed.

What’s the difference between “je ne comprends pas” and “je n’entends pas”? Je ne comprends pas means “I don’t understand” (the meaning isn’t landing). Je n’entends pas means “I can’t hear you” (a volume/sound problem). Use the right one so the other person fixes the right thing.

How do I ask what a word means? Qu’est-ce que ça veut dire ? (“What does that mean?”) or, for a specific word, ça veut dire quoi, “[word]” ? To go the other direction: comment dit-on… en français ? (“how do you say… in French?”).

Should I just ask if they speak English? You can (vous parlez anglais ?), but try French first. Parisians respond far better to an honest attempt plus je ne comprends pas than to an immediate switch to English before trying.