Let's learn about "머리 새로 했군요"

머리 새로 했군요 : You’ve changed your hairstyle; Your hair looks different; You had your hair done!; A new hairstyle?

머리 잘랐구나! : Oh, you got a haircut!

머리가 달라진 것 같아요 = 머리 모양이 바뀐 거 같은데 : You did something to your hair

뭔가 달라진 게 있는데 : There’s something different about you

머리에 뭐 했니? : What did you do to your hair?

ex)

A. 뭐 좀 달라 보이는데. 뭐 한 거야? : There is something different about you. What did you do?

B. 머리 잘랐어 : I got a haircut.

A. 아! 그래서 그랬구나! : Oh! That’s what it is!

[other expressions]

- (너) 머리 새로 했다. (to younger people or friends)

- (너) 머리 새로 했네. (to younger people or friends)

- (너) 머리 새로 했어. (to younger people or friends)

- (너) 머리 새로 했군! (to younger people or friends)

- (너) 머리 새로 했구나! (to younger people or friends)

- (언니) 머리 새로 했네요. (honourific by '요')

- (언니) 머리 새로 했군요! (honourific by '요')

- (언니) 머리 새로 했어요. (honourific by '요')

- (언니) 머리 새로 했습니다. (formal; more honourific by '스-‘)

[explanations]

* 너 / 니 : you (non-honourific word)

* 언니 : a woman is elder than a woman

* -의 : a suffix makes 너 / 니 / 언니 possesive; this omitted

* 머리 : (1) head (2) hair

* -를 : a particle makes 머리 objective after a word ends in a vowel

* 새로 : newly

* 하다 : do

* 했다 : past tense of 하다 by '-었-'

* 머리하다 = 머리를 하다 : change one's hairstyle

* 했습니다 : 했(the stem of 했가) + -스(a suffix makes a verb more honourific) + -ㅂ니다(an honourific descriptive verb ending suffix)

* 바꾸다 : change

* 바뀌다 : passive form of 바꾸다 by '-이'

* 다르다 : be different

* 달라지다 : passive form of 다르다 by '-아지다'

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

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

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

* a verb +  -습니다 / -ㅂ니다 : an honourific descriptive verb ending suffix by '스-' / '-ㅂ'