YOU SAID:
Hello, would you like a cup of water
INTO JAPANESE
こんにちは、一杯の水が欲しいですか
BACK INTO ENGLISH
Hello, do you want a cup of water
INTO JAPANESE
こんにちは、一杯の水が欲しいですか
BACK INTO ENGLISH
Hello, do you want a cup of water
That didn't even make that much sense in English.