French phrase
Combien d'articles puis-je ~ ?
Meaning
How many items can I ___?
When to use it
Asks for the maximum number of items permitted. Polite and natural in a shop when a purchase limit may apply.
Example dialogue
Combien d'articles puis-je acheter ?
How many items can I buy?
Vous pouvez en acheter cinq au maximum.
You can buy up to five.