debut can be accused of being a bit undisciplined 
(ROOT (S (NP (NN debut)) (VP (MD can) (VP (VB be) (VP (VBN accused) (PP (IN of) (S (VP (VBG being) (ADJP (NP (DT a) (NN bit)) (JJ undisciplined))))))))))
(ROOT (S (NP (NN )) (VP (MD ) (VP (VB ) (VP (VBN ) (PP (IN ) (S (VP (VBG ) (ADJP (NP (DT ) (NN )) (JJ ))))))))))