YOU SAID:
Mother-in-law you are dying
INTO JAPANESE
お義母さん、死にかけてます
BACK INTO ENGLISH
Mother-in-law, I'm dying
INTO JAPANESE
お義母さん、死んじゃうよ
BACK INTO ENGLISH
Mother-in-law, you're going to die
INTO JAPANESE
お義母さん、死にます
BACK INTO ENGLISH
mother-in-law will die
INTO JAPANESE
義母が死ぬ
BACK INTO ENGLISH
mother in law dies
INTO JAPANESE
義母が亡くなる
BACK INTO ENGLISH
mother in law dies
That didn't even make that much sense in English.