How to use Korean Grammar V/A + (으)니까

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Verb, Adjective + 니까 / 으니까

니까 - if a word ends in a vowel or ㄹ, 으니까 - if it ends in a consonant (except ㄹ)

In Korean grammar, -니까 / -으니까 is used to explain the reason of a certain action or situation. -니까 / -으니까 can be attached directly to a verb or adjective stem or past tense suffixes -았/-었/-였. -니까 / -으니까 can be translated as "because of", "since", "due to". When -니까 / -으니까 is used, the sentence that comes before -니까 / -으니까 explains a reason of the action. And the sentence that comes after -니까 / -으니까 explains the result caused by this reason.

See examples,
(click on translation and grammar buttons)

시간이 없으니까 중국어를 못 배워요.

Korean

시간

없다

중국어

배우다

English

time

not to have

Chinese language

cannot

to learn

I can't learn Chinese because I don't have time.

시간으니까 중국어 못 배우+어요.

집에 아무도 없으니까 심심해요.

Korean

아무도

없다

심심하다

English

house

nobody

not to have

to be bored

I'm bored because there's no one at home.

아무도 없으니까 심심하+여요.

오늘은 많이 더우니까 그냥 집에 있자.

Korean

오늘

많이

덥다

그냥

있다

English

today

a lot

hot

just

house

to have, to stay

It's very hot today, so let's just stay home.

오늘 많이 덥+으니까 그냥 집.

Quick reference (click to open)

Vowels: a, e, i, o, u

Consonants: b, c, d, f, g, h, j

Syllable: Bra-zil (2 syllables), Ar-gen-ti-na (4), In-di-a (3), Viet-nam (2), thin-king (2), beau-ti-ful (3), good (1)

Batchim: is a final consonant in a syllable. → Bra-zil (batchim: 'l'), Ar-gen-ti-na (batchims: 'r' and 'n'), In-di-a ('n'), Viet-nam ('t', 'm')

Romanization: is a conversion of text (not pronunciation ! ) from different writing system (Korean, Arabic, Russian, etc.) to the Roman (Latin) alphabet.

IPA: is an alphabetic system of phonetic (pronunciation) notation.

Noun: road, user, sister, table, sky

Pronoun: I, my, we, you, they, her

Verb: to go, to study, to think, to feel

Adjective: cold, kind, hungry, curious, expensive

Adverb: quickly, nicely, never, exactly, urgently

Preposition: from, to, on, in, with, till

Conjuction: and, because, if, but, while

Declarative sentence: I learn Korean.

Interrogative sentence: Do you learn Korean?

Imperative sentence: You must learn Korean!

Exclamative sentence: Wow, you learn Korean!

Verb / Adj. stem in Korean: part of a verb or adj. which is left after removing the last syllable -다 ( e.g. 가다 → 가, 예쁘다 → 예쁘, 듣다 → 듣 ).