YOU SAID:
I ain’t ever seen two pretty best friends
INTO JAPANESE
私は2人のかなり親友を見たことがありません
BACK INTO ENGLISH
I have never seen two pretty best friends
INTO JAPANESE
私は2人のかなりの親友を見たことがありません
BACK INTO ENGLISH
I have never seen two pretty best friends
You've done this before, haven't you.