How to Say “Know When” in French

savoir quand
The English phrase "know when" is translated into French as savoir quand.
The phrase savoir quand is frequently used within the imperative construction Fais-moi savoir quand to mean "Let me know when".

How does it change in a sentence?

When using savoir quand, the phrase is followed by a conjugated verb in the indicative mood. This applies even in cases where the English equivalent might use a future construction.

Did you know?

  • The French verb savoir comes from the Latin word sapere, which originally meant 'to taste'.
  • While savoir means 'to know' a fact, French has a completely different verb, connaître, for knowing a person or a place.
  • In French, saying Je ne sais pas can be shortened in casual speech to Chais pas, where the s and a merge into a sh sound.

Examples in context

  • Fais-moi savoir quand tu partiras.
    Let me know when you're going to leave.
    This sentence is useful for expressing the idea of letting someone know when a departure will occur using savoir quand.
    Tatoeba #7668270 by tras, translation #7611007 by CK
  • Fais-moi savoir quand tu es prêt !
    Let me know when you're ready!
    This sentence is useful for expressing the idea of letting someone know when they are ready using savoir quand.
    Tatoeba #10054028 by lbdx, translation #6173353 by sundown
  • Fais-moi savoir quand tu démarres.
    Let me know when you start.
    This sentence is useful for expressing the idea of letting someone know when a start occurs using savoir quand.
    Tatoeba #13457410 by sacredceltic, translation #12779896 by Tom9358
  • Est-ce que vous savez quand le concert aura lieu ?
    Do you know when the concert will take place?
  • Tu sais vers quelle heure on doit arriver à la gare ?
    Do you know around what time we should arrive at the station?
  • Tu sais quand le film sortira en avril ?
    Do you know when the movie will be released in April?
  • Il ne sait pas encore quand le match commencera.
    He doesn't know yet when the game will start.
  • Savez-vous quand se terminera la réunion, madame Dupont ?
    Do you know when the meeting will end, Mrs. Dupont?
  • Tu sais quand ça finit, ce truc ?
    Do you know when this thing ends?
  • 20 more sentences on Tatoeba

Example conversation

Manon and Hugo are planning a dinner party.

  1. Manon

    Est-ce que tu sais quand ils arrivent ?
    Do you know when they are arriving?
  2. Hugo

    Je ne sais pas encore.
    I don't know yet.
  3. Manon

    Je veux savoir quand commencer à cuisiner.
    I want to know when to start cooking.
  4. Hugo

    Je vais leur envoyer un message.
    I will send them a message.

Sources

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Kay Rhonda
Kay RhondaHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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