YOU SAID:

my sister told me she'd chop off my arm in my sleep with my cousin, I would die

INTO JAPANESE

姉はいとこと一緒に寝ている間に腕を切り落とすと言った、私は死ぬだろう

BACK INTO ENGLISH

My sister said she would cut off her arm while sleeping with her cousin, I would die

INTO JAPANESE

姉はいとこと寝ている間に腕を切ると言った、私は死ぬ

BACK INTO ENGLISH

My sister said she would cut her arm while sleeping with her cousin, I would die

INTO JAPANESE

姉はいとこと寝ている間に腕を切ると言った、私は死ぬ

BACK INTO ENGLISH

My sister said she would cut her arm while sleeping with her cousin, I would die