YOU SAID:

I ain't never seen two pretty best friends, its always one thats gotta be ugly

INTO JAPANESE

私は2人のかわいい親友を見たことがない、その常に醜い必要があるもの

BACK INTO ENGLISH

I've never seen two cute best friends, that's something that should always be ugly

INTO JAPANESE

私は2人のかわいい親友を見たことがない、それは常に醜いべきものです

BACK INTO ENGLISH

I've never seen two cute best friends, it should always be ugly

INTO JAPANESE

私は2人のかわいい親友を見たことがない、それは常に醜いはずです

BACK INTO ENGLISH

I've never seen two cute best friends, it should always be ugly