YOU SAID:
i wil caca on your desk
INTO JAPANESE
あなたの机の上にカカを置きます
BACK INTO ENGLISH
put kaka on your desk
INTO JAPANESE
カカを机の上に置きます
BACK INTO ENGLISH
put the kaka on the desk
INTO JAPANESE
カカを机の上に置く
BACK INTO ENGLISH
put the kaka on the desk
You've done this before, haven't you.