YOU SAID:

did all this. You have to stop him.

INTO JAPANESE

これをすべてやった。彼を止めなければならない。

BACK INTO ENGLISH

I did all this. I have to stop him.

INTO JAPANESE

私はこれをすべてやった。私は彼を止めなければなりません。

BACK INTO ENGLISH

I did all this. I have to stop him.