YOU SAID:
You guys did all the paint yourself?
INTO JAPANESE
あなたたちはすべて自分でペイントしましたか?
BACK INTO ENGLISH
Have you all painted yourself?
INTO JAPANESE
あなたはすべて自分で描いたことがありますか?
BACK INTO ENGLISH
Have you all drawn by yourself?
INTO JAPANESE
あなたはすべて自分で描いたことがありますか?
BACK INTO ENGLISH
Have you all drawn by yourself?
That didn't even make that much sense in English.