Let's learn about "신경 안 써"

(난) 신경 안 써 : I don't care!

[[other expressions]

- (난) 신경 안 쓴다. (to younger people or friends)

- (난) 신경 안 쓰네. (to younger people or friends)

- (난) 신경 안 써. (to younger people or friends)

- (전) 신경 안 쓰네요. (honourific by '요')

- (전) 신경 안 써요. (honourific by '요')

- (전) 신경 안 씁니다. (formal; more honourific by '스')

[explanations]

* 나 : I (non-homourific word)

* 저 : I (homourific word)

* -는 : a particle makes 나 / 저 subjective after a word ends in a vowel

* 난 : a short form of 나는

* 전 : a short form of 저는

* 쓰다 : (1) write down (2) [=사용하다] use (3) [모자(hat)·안경(glasses) 등] wear, put on (3) [우산(umbrella) 등] put up (4) [맛)taste)] bitter (5) [비유적(metaphorical)] bitter (6) employ; hire (7)  [신경((nerve)•힘(strength)•에너지(energy)] exert oneself; apply [use] force; use one's strength [energy]

- 그는 모자를 거꾸로 쓰고 있었다 : He was wearing his cap backwards.

- 우산을 쓰다 : put up an umbrella

- 커피가 너무 쓰다 : The coffee is too bitter

- 그녀에게 번번히 퇴짜를 맞으니 입맛이 쓰다 : I'm bitter about being turned down by her every time

* 써 : 쓰(the stem of 쓰다; 으 erased before 어) + -어(a non-honourific descriptive verb ending suffix)

* 씁니다 : 쓰(the stem of 쓰다)+ -ㅂ니다(an honourific descriptive verb ending suffix by '-ㅂ')

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

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

* a verb + -ㅂ니다 : an honourific descriptive verb ending suffix