Let's learn about "여긴 어쩐 일이세요?"

여긴 어쩐 일이세요? = 여긴 어쩐 일로 오셨어요? = 여긴 무슨 일로 오셨어요? : What brings you here?

[other expressions]

- 여긴 어쩐 일이니? (to younger people or friends)

- 여긴 어쩐 일이냐? (to younger people or friends)

- 여긴 어쩐 일이야? (to younger people or friends)

- 여긴 어쩐 일인가? (to younger people or friends)

- 여긴 어쩐 일이에요? (honourific by ‘-요’)

- 여긴 어쩐 일인가요? (honourific by ‘-요’)

- 여긴 어쩐 일입니까? (formal; more honourific by ‘시'’)

- 여긴 어쩐 일이세요? (more honourific by ‘-시’)

- 여긴 어쩐 일이셔요? (more honourific by ‘-시’)

- 여긴 어쩐 일이신가요? (more honourific by ‘-시’)

- 여긴 어쩐 일이십니까? (more honourific by ‘-시’)

- 여긴 어쩐 일로 왔니? (to younger people or friends)

- 여긴 어쩐 일로 왔나? (to younger people or friends)

- 여긴 어쩐 일로 왔냐? (to younger people or friends)

- 여긴 어쩐 일로 왔어? (to younger people or friends)

- 여긴 어쩐 일로 왔는가? (to younger people or friends)

- 여긴 어쩐 일로 왔나요? (honourific by ‘-요’)

- 여긴 어쩐 일로 왔어요? (honourific by ‘-요’)

- 여긴 어쩐 일로 왔는가요? (honourific by ‘-요’)

- 여긴 어쩐 일로 왔습니까? (formal; more honourific by ‘시'’)

- 여긴 어쩐 일로 오셨나요 ? (more honourific by ‘-시’)

- 여긴 어쩐 일로 오셨어요? (more honourific by ‘-시’)

- 여긴 어쩐 일로 오셨습니까? (more honourific by ‘-시’)

- 여긴 무슨 일로 왔니? (to younger people or friends)

- 여긴 무슨 일로 왔나? (to younger people or friends)

- 여긴 무슨 일로 왔냐? (to younger people or friends)

- 여긴 무슨 일로 왔어? (to younger people or friends)

- 여긴 무슨 일로 왔는가? (to younger people or friends)

- 여긴 무슨 일로 왔나요? (honourific by ‘-요’)

- 여긴 무슨 일로 왔어요? (honourific by ‘-요’)

- 여긴 무슨 일로 왔는가요? (honourific by ‘-요’)

- 여긴 무슨 일로 왔습니까? (formal; more honourific by ‘시'’)

- 여긴 무슨 일로 오셨나요 ? (more honourific by ‘-시’)

- 여긴 무슨 일로 오셨어요? (more honourific by ‘-시’)

- 여긴 무슨 일로 오셨습니까? (more honourific by ‘-시’)

[explanations]

* 여긴 : a short form of 여기는

* 여기 : here

* -는 : a place suffix mean "at/in/on"

* 어쩌다 = 어쩌다가 : (1) [=우연히•뜻밖에] accidentally, by chance, by accident, somehow (2) [가끔•이따금] at times sometimes, occasionally, (every) once in a while, from time to time, (every) now and then 

* 어쩌다 : a short form of 어찌하다 / 어떻게 하다; do something

* 어쩐 : an attributive form of 어쩌다; do something for a reason; what business; any business

* 일 : (1) work; task (2) a matter (3) incident; event (4) experience (5) plan

* 이다

* 일입니까? : 일 + 이(the stem of 이다)  + -ㅂ니까?(an  honourific interrogative verb ending suffix)

* 일이세요? : 일 + 이(the stem of 이다) + -시(a suffix makes a verb more honourific) + -어?(an interrogative verb ending suffix) + -요(an honourific verb ending suffix)

* 일이셔요? : 일 + 이(the stem of 이다) + -시(a suffix makes a verb more honourific) + -여?(an interrogative verb ending suffix) + -요(an honourific verb ending suffix)

* 일이신가요? : 일 + 이(the stem of 이다) + -시(a suffix makes a verb more honourific) + -ㄴ가?(an interrogative verb ending suffix) + -요(an honourific verb ending suffix)

* 일이십니까? : 일 + 이(the stem of 이다) + -시(a suffix makes a verb more honourific) + -ㅂ니까?(an honourific interrogative verb ending suffix)

* 어쩐 = 무슨 : what business; any business

* 일로 : 일 + -로(because of)

* 오다 : come

* 왔다 : past tense of 오다 by '-았-'

* 오셨다 : honourific form of 왔다 by '-시-'

* 왔어? : 왔(the stem of 왔다) + -어?(a non-honourific interrogative verb ending suffix)

* 왔는가? : 왔(the stem of 왔다) + -ㄴ가?(a non-honourific interrogative verb ending suffix)

* 왔습니까? : 왔(the stem of 왔다) + -스(a suffix makes a verb more honourific) + -ㅂ니까?(an  honourific interrogative verb ending suffix)

* 오셨나요? : 오셨(the stem of 오셨다) + -시(a suffix makes a verb more honourific) + -였(a suffix makes a verb past tense) + -나?(an interrogative verb ending suffix) + -요(an honourific verb ending suffix)

* 오셨어요? : 오셨(the stem of 오셨다) + -시(a suffix makes a verb more honourific) + -였(a suffix makes a verb past tense) + -어?(an interrogative verb ending suffix) + -요(an honourific verb ending suffix)

* 오셨는가요? : 오셨(the stem of 오셨다) + -시(a suffix makes a verb more honourific) + -였(a suffix makes a verb past tense) + -는가?(an interrogative verb ending suffix) + -요(an honourific verb ending suffix)

* 오셨습니까? : 오셨(the stem of 오셨다) + -시(a suffix makes a verb more honourific) + -였(a suffix makes a verb past tense) + -스(a suffix makes a verb more honourific) + -ㅂ니까?(an honourific interrogative verb ending suffix)

* a verb + -니? / -나? / -냐? / -ㄴ가? / -는가 / -어? : a non-honourific interrogative verb ending suffix

* a verb +  -나? / -ㄴ가? / -는가? / -어? + -요 : an honourific verb ending suffix

* a verb + -ㅂ니까? / -십니까? / -습니까? / -세요? / -셔요? : an honourific interrgative verb ending suffix by ‘-ㅂ-‘ / '시' / '스'