YOU SAID:
I dont think my brother is stupid. Hes kinda smart tho.
INTO JAPANESE
私の兄は愚かだとは思わない。彼はちょっと賢いです。
BACK INTO ENGLISH
I don't think my brother is stupid. He is a little smart.
INTO JAPANESE
私の兄は愚かではないと思います。彼は少し頭がいい。
BACK INTO ENGLISH
I don't think my brother is stupid. He is a little smart.
That didn't even make that much sense in English.