YOU SAID:
Can I have a Cup of Water
INTO JAPANESE
私は水のカップを持つことができますか?
BACK INTO ENGLISH
Can I have a cup of water?
INTO JAPANESE
私は水を飲みますか?
BACK INTO ENGLISH
Do I drink water?
INTO JAPANESE
私は水を飲むのですか?
BACK INTO ENGLISH
Am I drinking water?
INTO JAPANESE
私は飲み水ですか?
BACK INTO ENGLISH
Am I drinking water?
That didn't even make that much sense in English.