Formal Interrogative Ending

To ask a question, you can use the ㅂ니까 ending with a question mark.

학생이 도서관에 많습니까?
Are there a lot of students in the library?
(student library-in many?)


지금 무엇을 합니까?
What are you doing?
(now what do?)

Or you can insert the honorific marker (시).

지금 무엇을 하십니까?
What are you doing?
(now what do?)


어디 삽니까?
Where do you live?
(where live?)