code: def lexeme(self, verb, parse=True):
          
          a = []
          b = self.lemma(verb, parse=parse)
          if b in self:
              a = [x for x in self[b] if x != ""]
          elif parse is True: # rule-based
              a = self.find_lexeme(b)
          u = []; [u.append(x) for x in a if x not in u]
          return u
docs: Returns a list of all possible inflections of the given verb.