been forced by his kids to watch too many barney videos 
(ROOT (S (VP (VBN been) (VP (VBN forced) (PP (IN by) (NP (PRP$ his) (NNS kids))) (S (VP (TO to) (VP (VB watch) (NP (ADJP (RB too) (JJ many)) (NN barney) (NNS videos)))))))))
(ROOT (S (VP (VBN ) (VP (VBN ) (PP (IN ) (NP (PRP$ ) (NNS ))) (S (VP (TO ) (VP (VB ) (NP (ADJP (RB ) (JJ )) (NN ) (NNS )))))))))