YOU SAID:

I ain't never seen two pretty best friends, always one of them got to be ugly

INTO JAPANESE

私は2人のかなり親友を見たことがありません、常にそのうちの1人は醜くなりました

BACK INTO ENGLISH

I haven't seen two pretty best friends, one of them has always become ugly

INTO JAPANESE

私は2人のかなり親友を見たことがありません、そのうちの1人はいつも醜いです

BACK INTO ENGLISH

I haven't seen two pretty best friends, one of which is always ugly

INTO JAPANESE

私は2人のかなり親友を見たことがありません。そのうちの1人はいつも醜いです

BACK INTO ENGLISH

I have never seen two pretty best friends. One of them is always ugly

INTO JAPANESE

私は2人のかなりの親友を見たことがありません。それらの1つは常に醜いです

BACK INTO ENGLISH

I have never seen two pretty best friends. One of them is always ugly