code: @Nullable
    private String getPastTenseVerbSuggestion(String word) {
      if (word.endsWith("e")) {
        // strip trailing "e"
        String wordStem = word.substring(0, word.length()-1);
        try {
          String lemma = baseForThirdPersonSingularVerb(wordStem);
          if (lemma != null) {
            AnalyzedToken token = new AnalyzedToken(lemma, null, lemma);
            String[] forms = synthesizer.synthesize(token, "VER:3:SIN:PRT:.*", true);
            if (forms.length > 0) {
              return forms[0];
            }
          }
        } catch (IOException e) {
          throw new RuntimeException(e);
        }
      }
      return null;
    }
docs: non-native speakers and cannot be found by just looking for similar words.