French phrase
Combien ~ dois-je rendre ?
Meaning
How much ___ should I give back?
When to use it
Asks how much change to return. A polite, everyday question used when checking change.
Example dialogue
J'ai reçu cinquante euros pour une addition de vingt-trois euros.
I received fifty euros for a twenty-three-euro bill.
Combien de monnaie dois-je rendre ?
How much change should I give back?