YOU SAID:
she isn't the sharpest tool in the shed
INTO JAPANESE
彼女は小屋の中で最も鋭い道具ではない
BACK INTO ENGLISH
She is not the sharpest tool in the cabin.
INTO JAPANESE
彼女はキャビンの中で最も鋭いツールではありません。
BACK INTO ENGLISH
She is not the sharpest tool in the cabin.
You've done this before, haven't you.