Meanings1howIn a great and enormous degree in terms of a state or feeling.2howHow much.Examples from Lessons (3)얼마나 공부해요?How long have you been studying?Read the Lesson 여기 온 지 얼마나 됐어요?How long has it been since this arrived here?Read the Lesson 우리 집에서 도서관까지 얼마나 걸려요?How long does it take from my house to the library?Read the Lesson Grammar in These Examples-아/어Level 1Informal ending-요FoundationsPoliteness marker되다Level 2Become, be allowed