YOU SAID:

When i go to sleep m sister is crying because her boyfriend is murdered

INTO JAPANESE

私が眠りにつくとき、彼女のボーイフレンドが殺されたので妹が泣いている

BACK INTO ENGLISH

My sister is crying when I fall asleep as her boyfriend was killed.

INTO JAPANESE

私の妹は、彼女のボーイフレンドが殺されたときに眠りにつくと泣いています。

BACK INTO ENGLISH

My sister is crying as she falls asleep when her boyfriend was killed.

INTO JAPANESE

私の妹は、彼女のボーイフレンドが殺されたときに彼女が眠りに落ちるように泣いています。

BACK INTO ENGLISH

My sister is crying as she falls asleep when her boyfriend is killed.

INTO JAPANESE

私の妹は、彼女のボーイフレンドが殺されたときに眠りに落ちるように泣いています。

BACK INTO ENGLISH

When my sister was killed by her boyfriend fall asleep crying.

INTO JAPANESE

私の妹は彼女の彼氏に殺されたとき落ちる眠っている泣いています。

BACK INTO ENGLISH

When my sister was killed by her boyfriend fall asleep crying.