YOU SAID:

You're not very smart. In fact, you're pretty dumb.

INTO JAPANESE

あなたはあまり賢くないですね。実際、あなたはかなり愚かです。

BACK INTO ENGLISH

You are not very smart Actually you are pretty stupid.

INTO JAPANESE

あなたはあまり賢くないですが、実際のところ、あなたはかなり愚かです。

BACK INTO ENGLISH

You're not very smart, but you're actually pretty stupid.

INTO JAPANESE

あなたはあまり賢くはありませんが、実際にはかなり愚かです。

BACK INTO ENGLISH

You're not very smart, but you're actually pretty stupid.