YOU SAID:

if we throw him overboard the sharks will eat him alive

INTO JAPANESE

私たちが彼を船外に投げたら、サメは生きている彼を食べるでしょう

BACK INTO ENGLISH

If we throw him outboard, the shark will eat him alive

INTO JAPANESE

私たちが彼を船外に投げたら、サメは生きている彼を食べるでしょう

BACK INTO ENGLISH

If we throw him outboard, the shark will eat him alive