the polite adjective forms (used before the polite copula and verb ) exhibit a one-step or two-step sound change. firstly, these use the continuative form, , which exhibits "onbin", dropping the "k" as → . secondly, the vowel may combine with the preceding vowel, according to historical sound changes; if the resulting new sound is palatalized, meaning , this combines with the preceding consonant, yielding a palatalized syllable.