French phrase
Pouvez-vous me prévenir quand ~ ?
Meaning
Could you let me know when ___?
When to use it
A polite request to be told when something happens. It suits both business and everyday situations, with a slightly formal tone.
Example dialogue
Pouvez-vous me prévenir quand le colis arrivera ?
Could you let me know when the parcel arrives?
Oui, je vous préviendrai dès qu'il sera arrivé.
Yes, I'll let you know as soon as it arrives.