YOU SAID:

trying to chew off both his hands.

INTO JAPANESE

両手をかみ砕こうとする。

BACK INTO ENGLISH

I try to bite my hands.

INTO JAPANESE

手を噛もうとする。

BACK INTO ENGLISH

trying to bite my hand

INTO JAPANESE

手を噛もうとする

BACK INTO ENGLISH

try to bite my hand

INTO JAPANESE

私の手を噛んでみる

BACK INTO ENGLISH

bite my hand

INTO JAPANESE

私の手を噛む

BACK INTO ENGLISH

bite my hand