Let’s learn about "해내다”

니가 해냈어 : You nailed it

[other expressions]

- 니가 해냈다. (to younger people or friends)

- 니가 해냈네. (to younger people or friends)

- 니가 해냈어. (to younger people or friends)

- 니가 해냈군! (to younger people or friends)

- 니가 해냈구나! (to younger people or friends)

- 오빠가 해냈네요. (honourific by ‘-요’)

- 오빠가 해냈어요. (honourific by ‘-요’)

- 오빠가 해냈군요. (honourific by ‘-요’)

- 오빠가 해냈습니다. (formal; more honourific by ‘스’)

[explanations]

* 니 / 너 / 네 : you (non-honourific word to younger peoplen or friends)

* 오빠 : elder brother of a girl; A man who's a little older than me

* -가 : a particle makes 니 / 너 / 네 subjective after a word ends in a vowel

* 하다 : do

* 해내다 : 1) accomplish; achieve; carry through; perform; fulfil; succeed (in) (2) go at; beat; lick; put down; get the better of <— 하다(do) + -어(a connection suffix between two verbs) + 내다(come out; produce; make a goof result)

* 해냈다 : past tense of 해내다 by ‘었’

* 해냈습니다 : 해냈(the stem of 해냈다) + -스(a suffix makes a verb more honourific) + -ㅂ니다(an honourific descriptive verb ending suffix)

* a verb + -다 / -네 / -어 : a non-honourific descriptive verb ending suffix

* a verb + -군! / -구나 : a non-honourific exclamative verb ending suffix

* a verb + -네 / -어 / -군! + -요 : a non-honourific verb ending suffix

* a verb + -습니다 : -ㅂ니다 : an honourific descriptive verb ending suffix by ‘습’ / ‘-ㅂ’