How to Say “Let Me Know When” in French

dis-moi quand
The English phrase 'let me know when' can be translated into French using dis-moi quand.
This phrase is used to ask someone to provide information at the moment a specific event happens or a condition is met.

What does it mean word for word?

The phrase dis-moi quand is a literal translation of 'tell me when'. The word dis is the imperative of dire (to tell) and moi is 'me'.

Which one should you use?

While dis-moi quand is a direct way to say 'let me know when', you may also use the idiomatic alternative tiens-moi au courant quand, which means 'keep me updated/posted when'.

How does it change in a sentence?

The choice of verb form depends on whom you are addressing. Use the informal dis-moi quand when speaking to friends, family or peers. However, you should use dites-moi quand instead of dis-moi quand when speaking to a stranger, a superior or more than one person.

Did you know?

  • The idiomatic alternative tiens-moi au courant literally means 'hold me in the current', imagining the flow of information like an electric current or a stream.
  • In French, if you want to say 'let me know when' regarding a future event, you must use the future tense after quand, such as dis-moi quand tu arriveras. In English, we use the present tense 'when you arrive', but in French, the future tense is mandatory.
  • To avoid sounding too demanding when saying dis-moi quand, French speakers frequently wrap the phrase in a question using est-ce que tu peux.

Examples in context

  • Faites-moi savoir quand vous aurez terminé le rapport.
    Let me know when you have finished the report.
  • Prévenez-moi lorsque le vol arrive à destination.
    Let me know when the flight arrives at the destination.
  • Veuillez m'informer dès que les résultats seront disponibles.
    Please inform me as soon as the results are available.
  • Dis-moi quand tu es prêt à partir.
    Let me know when you are ready to leave.
  • Tiens-moi au courant lorsque tu auras fini de préparer les invitations.
    Keep me updated when you finish preparing the invitations.
  • Dis-moi quand tu seras prêt.
    Let me know when you are ready.
  • Dis-moi quand le colis arrive.
    Let me know when the package arrives.
  • Dis-moi quand tu as fini ton travail.
    Let me know when you have finished your work.

Example conversation

Hugo and Emma are planning to go to the cinema.

  1. Hugo

    Dis-moi quand tu as le billet.
    Let me know when you have the ticket.
  2. Emma

    D'accord, je te préviens dès que possible.
    Okay, I will let you know as soon as possible.
  3. Hugo

    Est-ce que tu peux l'acheter maintenant ?
    Can you buy it now?
  4. Emma

    Non, je dois attendre la confirmation.
    No, I have to wait for the confirmation.
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Corey Brett
Corey BrettHelp 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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