somebody/someone/somewhere/sometime etc
somebody/someone/somewhere/sometime/anyone/anybody/anytime/anywhere/something/anything and other pronouns I forgot to mention
you don't have to translate them all, just the common ones ( unless they're all used )

Question

Answer

somebody/someone/somewhere/sometime/anyone/anybody/anytime/anywhere

somebody, someone: 누군가
anyone, anybody: 누군가, 아무나
somewhere: 어딘가
anywhere: 어디에(서)(도)
sometime: 언젠가
anytime: 언제든

+something: 무엇인가(뭔가)