works more often than it does n't 
(ROOT (VP (VBZ works) (ADVP (ADVP (RBR more) (RB often)) (SBAR (IN than) (S (NP (PRP it)) (VP (VBZ does) (RB n't)))))))
(ROOT (VP (VBZ ) (ADVP (ADVP (RBR ) (RB )) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (RB )))))))