YOU SAID:
It ain't over till the fat lady sings.
INTO JAPANESE
太った女性が歌うまでは終わらない。
BACK INTO ENGLISH
It will not end until a fat woman sings.
INTO JAPANESE
太った女性が歌うまでは終わりません。
BACK INTO ENGLISH
I will not finish until a fat woman sings.
INTO JAPANESE
太った女性が歌うまで私は終わらない。
BACK INTO ENGLISH
I will not finish until a fat woman sings.
That didn't even make that much sense in English.