YOU SAID:
i'm going to fight that guy
INTO JAPANESE
私はその男と戦うつもりだ
BACK INTO ENGLISH
I'm going to fight the man.
INTO JAPANESE
私は男と戦うつもりです。
BACK INTO ENGLISH
I'm going to fight a guy.
INTO JAPANESE
私は男と戦うつもりです。
BACK INTO ENGLISH
I'm going to fight a guy.
That didn't even make that much sense in English.