(S (S (BASENP (DT The) (NNPS Conservatives)) (VP (VBD said) (SBAR (IN that) (S (BASENP (PRP it)) (VP (MD would) (VP (VP (VB be) (ADJP (JJ impossible))) (SBAR (IN for) (S (BASENP (PRP him)) (VP (TO to) (VP (VB continue) (BASENP (DT both) (NNS roles)))))))))))) (PERIOD .))