YOU SAID:

i want to use my hand to hit (also known as slapping) my brother on the face

INTO JAPANESE

私は手で弟の顔を殴りたい（平手打ちとも呼ばれます）

BACK INTO ENGLISH

I want to punch my brother in the face with my hand (also called slap)

INTO JAPANESE

弟の顔を手で殴りたいです（平手打ちとも言います）

BACK INTO ENGLISH

I want to punch my brother in the face (also called slap)

INTO JAPANESE

弟の顔を殴りたいです（平手打ちとも言います）

BACK INTO ENGLISH

I want to punch my brother in the face (also called slap)