You would not say “ give me fries please” como dicen en español .“dame papas fritas por favor”. Mas bien dirias algo como “ i would like a hamburger and an order of fries. No hace falta decir “please” pero puedes si quieres. Or, I would like (to have) a hamburger and fries please. You will be understood. Seras entido.

can i get some fries with that - perfectly normal in a bar / restaurant a portion of fries / medium / large / small etc but - fries ARE countable. "they gave me only 10 fries with my burger!"

Say, “I would like a large/medium/small portion of fries, please”.

"May I have an order of fries, please?" - This would be formal. I have heard "a batch of fries" as well. Formally, we call them "French Fries". Let's see....think about this... You say to a friend, "Could I have a french fry, please?" It's just one...so countable. " "A french fries" is not used...so we would use "fry" instead. Hope this helps you some. Just some things to know about. Happy learning!!!

“May I have some fries please”...or in England you can say “