YOU SAID:
I am mostly a fun guy
INTO JAPANESE
私は主に楽しい人です
BACK INTO ENGLISH
I am mainly fun person
INTO JAPANESE
私はおもに楽しい人です
BACK INTO ENGLISH
I am a fun person
INTO JAPANESE
私は楽しい人です
BACK INTO ENGLISH
I am a fun person
Well done, yes, well done!