How long has it been since you came to Seoul?

How long has it been since you came to Seoul?
	How long has it been since you came to Seoul ? Just a little over a month Have you ever been here before? This is the first time.		⊙ It has been ~ since : '∼한 지 ∼됐다'의 뜻. It's been a while since I last saw you. (마지막으로 뵙고 꽤 오랜만이군요.) How long has it been since you graduated from high school? (고등학교를 졸업한 지 얼마나 됐습니까?) It's been 10 years.(10년 됐습니다.) ⊙ Have you (ever) been∼ before? : '∼에 와 본 적, 가본적'에 해당하는 경험의 표현. Have you been to Seoul before? (서울에 가 본 적이 있습니까?) No, I haven't been there before. (아니오, 가 본 적이 없습니다.) ⊙ This is the first time : '처음입니다'라는 뜻. This is my first time to visit Korea. (한국을 방문하는 게 처음입니다.) This is my second time I've come to visit Tokyo. (동경을 방문하는 게 두 번째입니다.) time 대신 trip, visit을 써서 표현하기도 한다. This is my first visit to Korea. 한국을 방문하는 게 처음입니다.) This is my second trip to Tokyo. (동경을 여행하는 게 두 번째입니다.)