Let's learn about "Usage of one(s)"

* 이거 = 이것 : this one

* 저거 = 저것 : that one

* 파란 거 = 파란 것 : the blue one

* 작은 거 = 작은 것 : the small one

* 이것들 : these ones

ex) 

A. 어떤 선글라스가 더 맘에 들어? : Which sunglasses do you like better?

B. 난 까만 게 좋은데 : I like the black ones

[Descriptions]

* 어떤 : what; which

* 선글라스 : a pair of sunglasses

* -가 : a particle makes 선글라스 the topic of the sentence after a word ends in a vowel

* 마음 : heart; mind

* 맘 : (1) a short form of 마음 (2) a mother

* -에 : a place particle means "at/on/in"

* 들다 : [ㄹ 뷸규칙(irregular)] (1) [밖에서 안으로] enter, go[get, come] in(to), walk[step] in(to) (2) [=안에 담겨 있다] have, contain, hold (3) [햇볕 등이] enter into (4) [=손에 잡다] hold, take; [=집어 올리다] pick up; [=몸에 지니고 다니다] carry (5) [=위로 올리다] raise, lift (up), put up (6) [예·이유 등을] give, quote, cite

* 들어요 : 들(the stem of 들다) + -어?(an interrogative verb ending suffix) + -요(an honourific ending suffix)

* 나 : I (non-honourific word to younger people or friends)

* 저 : I (honourific word to the elderly)

* -는 : a particle makes 나 / 저 subjective after a word ends in a vowel; when this omitted, the sentence is more natural

* 난 : a short form of 나는; this omitted

* 전 : a short form of 저는; this omitted

* 까만 : (1) dark (2) completely; entirely in the sentence

* 까맣다 : a verb form of 까만

* 까맣게 : an adverb form of 까만

* 까만 : [=흑(黑)] a short form of 까만색

* 색 : [色] color

* 까만색 = 흑색 : a dark color

* 게 : a shorr form of 것이

* 거가 : a shorr form of 것이

* 거 = 것 : a thing

* -가 : a particle makes 거 the topic of the sentence after a word ends in a vowel

* -이 : a particle makes 것 the topic of the sentence after a word ends in a consonant

* 좋은 : good; suitable in the sentence

* (-이 / -가) 좋다 : [Pronunciation: 조타] be good; be suitable in the sentence

* 좋았다 : past tense of 좋다 by '-았-'

* 좋은데요 : 좋(the stem of 좋다) + -은데(A sentence-final ending used to admire something while anticipating the listener's response) + -요(an honourific ending suffix)