How do you ask for a cheese sandwich in french?

Formal:

* "Je voudrais un sandwich au fromage, s'il vous plaît." (pronounced: "zhuh voo-dray uh san-dwich oh fro-mazh, seel voo pleh") - This is the most polite and formal way to ask.

Informal:

* "Un sandwich au fromage, s'il te plaît." (pronounced: "uh san-dwich oh fro-mazh, seel teh pleh") - This is more casual and you would use it with someone you know well.

Adding details:

You can add details to your request, like:

* "Un sandwich au fromage avec du jambon." (pronounced: "uh san-dwich oh fro-mazh ah-vek duh zham-bon") - A cheese and ham sandwich.

* "Un sandwich au fromage grillé." (pronounced: "uh san-dwich oh fro-mazh gree-yay") - A grilled cheese sandwich.

Other options:

* "Un croque-monsieur" (pronounced: "uh krok-moh-syuh") - This is the French name for a grilled ham and cheese sandwich.

* "Un sandwich au fromage et à la tomate." (pronounced: "uh san-dwich oh fro-mazh eh ah lah toh-mat") - A cheese and tomato sandwich.

Remember, the best way to ask depends on the context and your relationship with the person you're speaking to.