never succeed in really rattling the viewer 
(ROOT (S (ADVP (RB never)) (VP (VB succeed) (PP (IN in) (S (ADVP (RB really)) (VP (VBG rattling) (NP (DT the) (NN viewer))))))))
(ROOT (S (ADVP (RB )) (VP (VB ) (PP (IN ) (S (ADVP (RB )) (VP (VBG ) (NP (DT ) (NN ))))))))