YOU SAID:
I am a good guy I swear
INTO JAPANESE
私は誓う良い男だ
BACK INTO ENGLISH
I am a good man to swear
INTO JAPANESE
私は誓う良い人です
BACK INTO ENGLISH
I am a good person to swear
INTO JAPANESE
私は誓う良い人です
BACK INTO ENGLISH
I am a good person to swear
You've done this before, haven't you.