code: def _suffix_rules(token, tag="NN"):
      
      if isinstance(token, (list, tuple)):
          token, tag = token
      if token.endswith("ing"):
          tag = "VBG"
      if token.endswith("ly"):
          tag = "RB"
      if token.endswith("s") and not token.endswith(("is", "ous", "ss")):
          tag = "NNS"
      if token.endswith(("able", "al", "ful", "ible", "ient", "ish", "ive", "less", "tic", "ous")) or "-" in token:
          tag = "JJ"
      if token.endswith("ed"):
          tag = "VBN"
      if token.endswith(("ate", "ify", "ise", "ize")):
          tag = "VBP"
      return [token, tag]
docs: Default morphological tagging rules for English, based on word suffixes.