YOU SAID:
I've 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.
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.