Why You Can’t Say “Je ne savais jamais” in French
If you’ve ever wanted to say “I never knew” in French, your first instinct might be to translate it directly as “je ne savais jamais.” It sounds logical, but we’re going to talk about why you can’t say “Je ne savais jamais” in French. You can download a PDF of this lesson guide in my private French Grammar Library.
In fact, this phrase is immediately awkward and incorrect to native French speakers. So what’s the problem? It all comes down to two things: negation and the difference between l’imparfait and le passé composé.
In this lesson, we’ll discuss why you can’t say “je ne savais jamais” in French, when to use “je n’ai jamais su” instead, and how to make sure your past-tense expressions in French sound natural and accurate.
You Can’t Say “Je ne savais jamais” to Mean “I Never Knew”
If you want to say “I never knew” in French, your first instinct might be to say:
𝗫 Je ne savais jamais
…but this doesn’t work in French.
Instead, you have two options. Be careful though, because they don’t mean the same thing:
✔ Je ne savais pas (imperfect)
✔ Je n’ai jamais su (passé composé)
Let’s explore why, using a clear comparison of l’imparfait vs. le passé composé, and how negation works with them.
Two Past Tenses in French
The Imperfect
Used for describing ongoing states, habits, or conditions in the past, setting the scene or giving background info.
Je savais la réponse.
I knew the answer. (for some time)
Le Passé Composé
Used for completed actions in the past and events that happened at a specific point.
J’ai su la réponse.
I found out the answer. (at a moment in time)
Why You Can’t Say “Je ne savais jamais” in French
Here’s the problem: “Jamais” is used to express “never”, meaning not even once.
The imparfait (as in savais) is not about individual events. It describes ongoing situations or repeated habits.
𝗫 “Je ne savais jamais” tries to mix “never even once” with a tense that means “something lasted over time”, and that doesn’t make sense in French.
It’s like saying “I was never knowing”, and that’s awkward.
Maybe You Can Say “Je n’ai jamais su” Instead
This version uses the passé composé, which is the correct tense for expressing something that didn’t happen even once as a single, completed event (or the absence of it). It means you never found out about something.
✔️ Je n’ai jamais su…
✔️ I never found out…
This phrase doesn’t mean “I never knew” (which would be the imperfect), but rather:
There was never a moment when I discovered or learned it.
That’s the real meaning of “never knew” in English:
I never came to know it. (never learned it / found out)
Je ne l’ai jamais su.
Useful Tips – Why You Can’t Say “Je ne savais jamais” in French
If you want to say “I never knew”, use the imperfect with PAS instead of JAMAIS: Je ne savais pas! I didn’t know!
If you want to say “I never found out,” you should use passé composé in French with JAMAIS: Je n’ai jamais su!
Compare the Two in Context
| English | 𝗫 Incorrect | ✔️ Correct | Explanation |
| I never knew her name. | Je ne savais jamais son nom. | Je ne savais pas son nom. | “Savais” = ongoing state, but “never” means it never happened, so the imperfect doesn’t work |
| I never found out her name. | Je ne savais jamais son nom. | Je n’ai jamais su son nom. | “Never” = not even once, so it needs the passé composé |
Use The Imperfect With “Pas”
You can translate the following sentences however you like in English (use “never” if you want to), but you can’t use “jamais” in French.
Elle ne savait pas quoi faire.
She didn’t know (never knew) what to do.
Ils ne savaient pas que c’était dangereux.
They didn’t know (never knew) it was dangerous.
Use Le Passé Composé With “Jamais”
Il n’a jamais su que je l’aimais.
He never found out that I loved him.
Nous n’avons jamais su la vérité.
We never found out the truth.
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