YOU SAID:

um i dont know im stupid

INTO JAPANESE

私は愚かだとは知らない

BACK INTO ENGLISH

I don't know if I'm stupid.

INTO JAPANESE

バカかどうかはわからない

BACK INTO ENGLISH

I don't know if you're stupid.

INTO JAPANESE

馬鹿かどうかはわからない

BACK INTO ENGLISH

I don't know if you're stupid.