YOU SAID:

That is why your mother is dead.

INTO JAPANESE

あなたのお母さんが死んだのはそのためです。

BACK INTO ENGLISH

That's why your mother died.

INTO JAPANESE

だからお母さんが死んだのです。

BACK INTO ENGLISH

That's why my mother died.

INTO JAPANESE

だから母は亡くなりました。

BACK INTO ENGLISH

That's why my mother died.