P.S. the "ㅂ-irregular inflections" section didn't come from the Japanese article; however it was still translated from some material calling them "ㅂ変格用言" in Japanese, so if you could think of a better English name than something weird-sounding like "ㅂ-irregular inflected word" it'd be great -) (As an aside, I've always thought the real "irregular" verbs in Japanese are those funky obsolete ones marked "特別活用" in dictionaries)