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B1IntermediatePrepositions and adverbs · Point 38 / 40

quand, dès que, pendant que, avant de + infinitif

“Quand” and “dès que” (“aussitôt que”) introduce the moment something happens; “dès que” adds the idea “right after”.

ConnectorPatternMeaning
quand—at the moment when (when)
dès que—right from the moment, immediately after (as soon as)
pendant que—at the same time as (while)
avant de+ infinitifbefore doing something (before)

With a future event, the verb after “quand” or “dès que” is in the future, not the present: “j’appellerai dès que j’aurai la réponse”.

In context

Examples from our dialogues

Lines taken from our dialogues. Listen to them, then open the full dialogue to hear them in a real situation.

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Common mistakes

Mistakes you will often hear, and the right way to say it.

  • Je vous appelle dès que j'ai la réponse demain.Je vous appellerai dès que j'aurai la réponse demain.

    English says “as soon as I have” in the present; in French, if it is in the future, both verbs go in the future: “j’appellerai dès que j’aurai”.

  • Après vérifier les références, je vous rappelle.Après avoir vérifié les références, je vous rappelle.

    “Après” does not go directly before a plain infinitive: you need “après avoir” (or “après être”) + past participle. “Avant de”, on the other hand, does take the plain infinitive: “avant de vérifier”.

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Related readings

Short texts where this point comes up. Read them to see it inside a story.