ラ行変格活用 ラぎょうへんかくかつよう irregular conjugation of a limited number of verbs ending in "ru" (in written Japanese) n Advanced ➥
ナ行変格活用 ナぎょうへんかくかつよう irregular conjugation of verbs ending in "nu" (in written Japanese) n ling Advanced ➥
サ行変格活用 サぎょうへんかくかつよう irregular conjugation of s-stem verbs; conjugation of the verb "suru" n Advanced ➥