YOU SAID:

He's not the sharpest knife in the drawer.

INTO JAPANESE

彼は引き出しの中に鋭いナイフではないです。

BACK INTO ENGLISH

Is not he the sharp knives in the drawer.

INTO JAPANESE

彼は引き出しの中に鋭いナイフです。

BACK INTO ENGLISH

He is a sharp knife in the drawer.

INTO JAPANESE

彼は引き出しの中に鋭いナイフです。

BACK INTO ENGLISH

He is a sharp knife in the drawer.