YOU SAID:
Do you think I'm smart?
INTO JAPANESE
私はスマートだと思いますか。
BACK INTO ENGLISH
Do you think I'm smart.
INTO JAPANESE
私はスマートだと思います。
BACK INTO ENGLISH
I think I'm smart.
INTO JAPANESE
私はスマートだと思います。
BACK INTO ENGLISH
I think I'm smart.
That didn't even make that much sense in English.