Describing things

Korean adjectives behave like verbs: they take the same endings (위험해요, 위험했어요) and change their ending before a noun (위험한 길). Many come in pairs worth learning together, such as 깊다 and 얕다 or 두껍다 and 얇다. Several whose stem ends in a b sound are irregular: 두껍다 becomes 두꺼워요, 날카롭다 becomes 날카로워요. And English "thin" splits in Korean: 얇다 for paper and cloth, 가늘다 for a thread or a noodle, 마르다 for a person.