Korean Conjugation

Ten classes, and 1,133 of the 3,698 verbs and adjectives here belong to one. That sounds worse than it is: 697 of them are 하다 verbs, which are all one paradigm repeated, and the genuinely awkward classes — ㅂ, 르, ㄷ, ㅅ — come to a few hundred words between them.

해요체 is the everyday polite form and the one to learn first. 합니다체 is formal — announcements, presentations, the news. 해체 is 반말, used with friends and people younger than you. 한다체 is the plain written style you meet in books and newspapers. Every table here shows all four side by side, because choosing between them is the actual skill.

Yes. 형용사 are stative verbs — 춥다 is closer to "to be cold" than to "cold" — so they take tense and speech-level endings exactly as action verbs do and need no copula. What they do not have is an imperative or a propositive: you cannot order someone to be cold, and the tables here leave those rows out for adjectives.

Generated, from the dictionary form, the part of speech and the irregular class — Korean conjugation is fully algorithmic given those three. The engine is checked on every build against the 9,380 conjugated forms the 국립국어원 dictionary itself publishes, and reproduces 99.8% of them; the remainder are archaic speech levels and a handful of dictionary typos.