YOU SAID:

I aint never seen 2 pretty best friends, its always one of them gotta be ugly

INTO JAPANESE

私は2かわいい親友を見たことがない、その常にそれらの1つは醜い必要があります

BACK INTO ENGLISH

I've never seen two cute best friends, that always one of them must be ugly

INTO JAPANESE

私は2人のかわいい親友を見たことがない、それは常にそれらの1つが醜いに違いない

BACK INTO ENGLISH

I've never seen two cute best friends, it must always be one of them ugly

INTO JAPANESE

私は2人のかわいい親友を見たことがない、それは常に醜いそれらの1つでなければなりません

BACK INTO ENGLISH

I've never seen two cute best friends, it must always be one of them ugly