YOU SAID:
It is not the case that this is not important
INTO JAPANESE
これが重要でない場合ではないです。
BACK INTO ENGLISH
Not if it is not important.
INTO JAPANESE
ない場合は、それは重要ではありません。
BACK INTO ENGLISH
Otherwise, it isn't important.
INTO JAPANESE
そうでなければ、それは重要ではありません。
BACK INTO ENGLISH
Otherwise, it doesn't matter.
INTO JAPANESE
そうでなければ、それは関係ありません。
BACK INTO ENGLISH
Otherwise, it doesn't matter.
You've done this before, haven't you.