Past Tense and Past Participle
What non-standard past tense or past participle forms have you heard or seen? Every now and then I catch myself saying, "I should boughten that before." I have heard a few other people say "boughten," but it's always after "should have" or "could have." It's also not a Kansas or Midwest thing, as the others I have heard say it are not from the Midwest.