code: def _verbs_with_subjects(doc):
      
      # TODO: UNUSED
      verb_subj = []
      for possible_subject in doc:
          if (possible_subject.dep_ == 'nsubj' and possible_subject.head.pos_ ==
                  'VERB'):
              verb_subj.append([possible_subject.head, possible_subject])
      return verb_subj
docs: Given a spacy document return the verbs that have subjects