The Korean adjectives have the same rules as the verbs for the honorific 아/어요. Use '아요' when the vowel is 'ㅏ, ㅗ'. When the vowel is not 'ㅏ, ㅗ', '어요' is used. There are also irregular adjectives that require additional attention. 으 irregular adjectives, 르 irregular adjectives, and ㅂ irregular adjectives.