code: def get_workflow_status_change_verb(status):
      
      verb = ''
      if status.endswith('ing'):
          verb = 'is'
      elif status.endswith('ed'):
          verb = 'has been'
      else:
          raise ValueError('Unrecognised status {}'.format(status))
  
      return verb
docs: Give the correct verb conjugation depending on status tense.
  
      :param status: String which represents the status the workflow changed to.