YOU SAID:
That that is is that that is not is not is that
INTO JAPANESE
それはそれはそれはそうではないということです
BACK INTO ENGLISH
that's what it's not
INTO JAPANESE
それはそうじゃない
BACK INTO ENGLISH
it's not
INTO JAPANESE
そうではありません
BACK INTO ENGLISH
it's not
You've done this before, haven't you.