YOU SAID:

How are you so stupid?!

INTO JAPANESE

どのようにあなたは愚かなのですか?

BACK INTO ENGLISH

How stupid are you?

INTO JAPANESE

どのように愚かなですか。

BACK INTO ENGLISH

How stupid do.

INTO JAPANESE

どのように愚かなか。

BACK INTO ENGLISH

How silly?

INTO JAPANESE

どのように愚かです?

BACK INTO ENGLISH

How stupid is that?

INTO JAPANESE

どのように愚かなあれですか。

BACK INTO ENGLISH

How stupid that is?

INTO JAPANESE

どのように愚かなことですか。

BACK INTO ENGLISH

How stupid that is?