YOU SAID:
I ain't never seen two pretty best friends...
INTO JAPANESE
私は2人のかわいい親友を見たことがない.
BACK INTO ENGLISH
I've never seen two cute best friends.
INTO JAPANESE
私は2人のかわいい親友を見たことがありません。
BACK INTO ENGLISH
I've never seen two cute best friends.
Well done, yes, well done!