YOU SAID:

I have to beat my sister, while smashing with my mother

INTO JAPANESE

母とぶつかりながら、姉をbeatらなければならない

BACK INTO ENGLISH

I have to beat my sister while hitting my mother

INTO JAPANESE

母をhitりながら姉をbeatらなければならない

BACK INTO ENGLISH

I have to beat my sister while hitting my mother