YOU SAID:

i am the most awesome person in the world

INTO JAPANESE

私は世界で最も素晴らしい人

BACK INTO ENGLISH

I'm the nicest person in the world

INTO JAPANESE

私は、世界で最も素晴らしい人

BACK INTO ENGLISH

I was the nicest person in the world

INTO JAPANESE

私は世界で最も素晴らしい人だった

BACK INTO ENGLISH

I was the nicest person in the world