| 왜 – Why |
| 어디 – Where |
| 무엇이 – What (with the subject marker) |
| 무엇을 – What (with the object marker) |
| 뭐/뭣 – What (contraction of 무엇) |
| 뭘 – Contraction of 무엇을 |
| 어느 – Which |
| 언제 – When |
| 어떻게 – How (adverb form of the verb 어떻다 which could be translated as ‘to be how’) |
| 누가/누구 – Who (누가 is used as a subject while 누구 is used as an object) |
| 어떤 – What kind of |
| 무슨 – What (kind of) |
| 얼마/얼마나 – How (much/many) |
