YOU SAID:

were watching a killing game stream tonight with the boys

INTO JAPANESE

今夜は男の子と一緒に殺人ゲームのストリームを見ていました

BACK INTO ENGLISH

Tonight I was watching a stream of murder games with a boy

INTO JAPANESE

今夜私は男の子と殺人ゲームの流れを見ていました

BACK INTO ENGLISH

Tonight I was watching a murder game with boys

INTO JAPANESE

今夜は男の子との殺人ゲームを見ていました

BACK INTO ENGLISH

I was watching a murder game with a boy tonight

INTO JAPANESE

今夜少年と殺人ゲームを見ていました

BACK INTO ENGLISH

I was watching a murder game with a boy tonight