code: def check(text):
      
      err = "misc.suddenly"
      msg = u"Suddenly is nondescript, slows the action, and warns your reader."
      regex = "Suddenly,"
  
      return existence_check(text, [regex], err, msg, max_errors=3,
                             require_padding=False, offset=-1, ignore_case=False)
docs: Advice on sudden vs suddenly.