not to have been edited at all 
(ROOT (S (RB not) (VP (TO to) (VP (VB have) (VP (VBN been) (VP (VBN edited) (ADVP (IN at) (DT all))))))))
(ROOT (S (RB ) (VP (TO ) (VP (VB ) (VP (VBN ) (VP (VBN ) (ADVP (IN ) (DT ))))))))