YOU SAID:
When is supper going to be ready?
INTO JAPANESE
夕食の準備はいつですか?
BACK INTO ENGLISH
When are you ready for dinner?
INTO JAPANESE
夕食の用意は出来ていますか。
BACK INTO ENGLISH
Are you ready for dinner?
INTO JAPANESE
夕食の用意は出来ていますか。
BACK INTO ENGLISH
Are you ready for dinner?
That didn't even make that much sense in English.