For autodidact students of Korean, negation has three main forms. 안 (an) is the general negative adverb meaning "don't/doesn't" — voluntary or habitual negation. 못 (mot) expresses inability: "can't / not able to." Both precede the verb. The long negation forms -지 않다 and -지 못하다 attach after the verb stem and carry a more formal or emphatic register. Choosing correctly between 안 and 못 — intent versus inability — is one of Korean's most important early distinctions.
Key Takeaways: - 안 + verb: don't/doesn't — voluntary negation: 안 가요 (don't go / not going) - 못 + verb: can't — inability: 못 가요 (can't go) - Verb-지 않다: long negative — formal: 가지 않아요 - Verb-지 못하다: long inability: 가지 못해요 - 아니다 (anida): is not — negates noun predicates - 없다 (eopda): there is not / don't have — negates existence/possession - -지 마세요: please don't — prohibition
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
안 (an): ㅇ+ㅏ+ㄴ — the null initial consonant ㅇ + vowel ㅏ + final ㄴ. Monosyllabic. Precedes the verb directly with a space: 안 가요 (not two words without space). 못 (mot): ㅁ+ㅗ+ㅅ — the final ㅅ is unreleased /t̚/ before consonants. Before ㅎ the aspiration merges: 못 해요 → [모태요]. 없다 (eopda): ㅇ+ㅓ+ㅂ+ㅅ+ㄷ+ㅏ — the complex final consonant cluster ㄼ is reduced.
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
16.1 오늘 (oneul) today 안 (an) not 가요 (gayo) go-POLITE
16.2 한국어를 (hangugoreul) Korean-OBJ 못 (mot) can't 해요 (haeyo) do-POLITE
16.3 저는 (jeoneun) I-TOPIC 학생이 (haksaengi) student-SUBJ 아니에요 (anieyo) not-am-POLITE
16.4 시간이 (sigani) time-SUBJ 없어요 (eopseoyo) not-have-POLITE
16.5 밥을 (babeul) rice-OBJ 안 (an) not 먹었어요 (meogeosseoyo) ate-POLITE
16.6 어제 (eoje) yesterday 잠을 (jameul) sleep-OBJ 못 (mot) couldn't 잤어요 (jasseoyo) slept-POLITE
16.7 그렇게 (geureoke) like-that 하지 (haji) do-NMLZ 않을 (anheul) not-FUT 거예요 (geoyeyo) thing-is-POLITE
16.8 무섭지 (museopji) scary-NMLZ 않아요 (anhayo) not-POLITE
16.9 오늘은 (oneureun) today-TOPIC 못 (mot) can't 만나요 (mannayo) meet-POLITE
16.10 이거 (igeo) this 먹지 (meokji) eat-NMLZ 마세요 (maseyo) please-don't-POLITE
16.11 아직 (ajik) yet 준비가 (junbiga) preparation-SUBJ 안 (an) not 됐어요 (dwaesseoyo) done-POLITE
16.12 그 사람이 (geu sarami) that-person-SUBJ 마음에 (maeume) heart-AT 안 (an) not 들어요 (deureoyo) enter-POLITE
16.13 못 (mot) can't 믿겠어요 (mitgesseoyo) believe-POLITE
16.14 걱정하지 (geokjeonghaji) worry-NMLZ 마세요 (maseyo) please-don't-POLITE
16.15 절대로 (jeoldaero) absolutely 안 (an) not 할 (hal) do-FUT 거예요 (geoyeyo) thing-is-POLITE
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
16.1 오늘 안 가요. "I'm not going today." (choice) 16.2 한국어를 못 해요. "I can't speak Korean." (inability) 16.3 저는 학생이 아니에요. "I am not a student." 16.4 시간이 없어요. "I don't have time." 16.5 밥을 안 먹었어요. "I didn't eat." (chose not to) 16.6 어제 잠을 못 잤어요. "I couldn't sleep last night." (inability) 16.7 그렇게 하지 않을 거예요. "I won't do it like that." 16.8 무섭지 않아요. "I'm not scared." 16.9 오늘은 못 만나요. "I can't meet today." (inability) 16.10 이거 먹지 마세요. "Please don't eat this." 16.11 아직 준비가 안 됐어요. "It's not ready yet." 16.12 그 사람이 마음에 안 들어요. "I don't like that person." 16.13 못 믿겠어요. "I can't believe it." 16.14 걱정하지 마세요. "Please don't worry." 16.15 절대로 안 할 거예요. "I absolutely will not do it."
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
16.1 오늘 안 가요. 16.2 한국어를 못 해요. 16.3 저는 학생이 아니에요. 16.4 시간이 없어요. 16.5 밥을 안 먹었어요. 16.6 어제 잠을 못 잤어요. 16.7 그렇게 하지 않을 거예요. 16.8 무섭지 않아요. 16.9 오늘은 못 만나요. 16.10 이거 먹지 마세요. 16.11 아직 준비가 안 됐어요. 16.12 그 사람이 마음에 안 들어요. 16.13 못 믿겠어요. 16.14 걱정하지 마세요. 16.15 절대로 안 할 거예요.
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
안 vs 못 — the critical distinction: 안 가요 (I'm not going — I choose not to). 못 가요 (I can't go — something prevents me). Misusing 못 for 안 implies external obstacle when the speaker is simply refusing; misusing 안 for 못 implies willful refusal when the speaker is genuinely unable. Both errors send the wrong social message.
-지 않다 / -지 못하다 — long form negation: More formal and deliberate than short forms. 가지 않아요 = 안 가요. 가지 못해요 = 못 가요. Used in formal speech, writing, and when the verb is complex.
-지 마세요 / -지 마 — prohibition: Verb + 지 + 마세요 (polite don't) / 마 (informal don't). 먹지 마세요 (please don't eat), 걱정하지 마 (don't worry). The most natural Korean prohibition form.
마음에 안 들다 — "not to one's liking": Literally "not enter the heart." Indirection more natural than 싫어요 (I dislike it) directly. 마음에 들다 (to one's liking) / 마음에 안 들다 (not to one's liking).
아니다 vs 없다: 아니다 negates identity: 학생이 아니에요 (not a student). 없다 negates existence/possession: 시간이 없어요 (no time / don't have time).
Common Mistakes: - Using 못 when you mean 안: 오늘 못 가요 implies something is stopping you; 오늘 안 가요 means you simply won't. - Spacing: 안가요 (wrong — no space); 안 가요 (correct).
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
걱정하지 마세요 (please don't worry) is one of the most frequently spoken phrases in Korean family and social life. Korean culture involves significant mutual concern — 걱정 (worry) about health, safety, career — and the natural response from those being worried about is deflection: 걱정하지 마세요, 괜찮아요 (don't worry, I'm fine). The negation of worry is itself a form of care returned.
못 믿겠어요 (I can't believe it) — one of the most useful colloquial expressions combining 못 with a mental-state verb. Korean uses 못 with perception and cognition verbs to indicate overwhelming impression: 못 믿겠다 (can't believe it), 못 듣겠다 (can't bear to hear it), 못 보겠다 (can't bear to look).
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
기형도 (Ki Hyeongdo), 《빈집》— Empty House, 1989
나는 아무것도 사랑하지 않았다.
F-A: Interlinear — 나는 (naneun) I-TOPIC 아무것도 (amugeotdo) nothing-EMPH 사랑하지 (saranghaji) love-NMLZ 않았다 (anhattda) not-did-PAST
F-B: Translation — "I loved nothing at all."
F-C: Original — 나는 아무것도 사랑하지 않았다.
F-D: Notes — 사랑하지 않았다: the long-form negation of love — deliberate, formal, permanent. 아무것도 (nothing at all) + negation = total negation. The long form 지 않다 gives this negation a weight the short form 안 사랑했다 would not carry — it sounds considered, not casual.
F-E: Commentary — Ki Hyeongdo died young, his poetry full of emptiness and negation. The long-form -지 않다 is the grammar of deliberate, chosen emptiness — not accidental absence but willed non-attachment. Korean poetry returns to negation as a philosophical stance; the grammar supports this with its range of negative forms.
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
Two roommates negotiating household tasks — every sentence a different negation form.
16.16 지훈: 설거지 (seolgeoji) dishes 할 (hal) do-FUT 수 (su) can 있어 (isseo) have-INF?
16.17 은지: 지금 (jigeum) now 못 (mot) can't 해 (hae) do-INF。손이 (soni) hands-SUBJ 다쳤어 (dachyeosseo) injured-INF
16.18 지훈: 아，그럼 (geureum) then 청소는 (cheongsoneun) cleaning-TOPIC?
16.19 은지: 청소는 (cheongsoneun) cleaning-TOPIC 안 (an) not 할 (hal) do-FUT 거야 (geoya) thing-is-INF。어제 (eoje) yesterday 했잖아 (haetjanha) did-didn't-I-INF
16.20 지훈: 맞아 (maja) right，미안 (mian) sorry。그럼 (geureum) then 나 (na) I 다 (da) all 할게 (halge) will-do-INF
16.21 은지: 아니야 (aniya) not-so-INF，그렇게 (geureoke) like-that 하지 (haji) do-NMLZ 마 (ma) don't-INF。내가 (naega) I-SUBJ 빨래는 (ppallaeneun) laundry-TOPIC 할 (hal) do-FUT 수 (su) can 있어 (isseo) have-INF
16.22 지훈: 손 (son) hand 안 (an) not 아파 (apa) hurt-INF?
16.23 은지: 빨래는 (ppallaeneun) laundry-TOPIC 손을 (soneul) hands-OBJ 많이 (manhi) much 안 (an) not 써도 (sseodo) use-even-if 돼 (dwae) okay-INF
16.24 지훈: 그럼 (geureum) then 요리는 (yorineun) cooking-TOPIC 내가 (naega) I-SUBJ 할게 (halge) will-do-INF。잘 (jal) well 못 (mot) can't 하지만 (hajiman) but-INF
16.25 은지: [웃으며] 지훈이 (Jihuni) Jihun-SUBJ 요리를 (yorireul) cooking-OBJ 못 (mot) can't 하는 (haneun) do-PRES 건 (geon) thing 알아 (ara) know-INF
16.26 지훈: 야！그렇게 (geureoke) like-that 말하지 (malhaji) say-NMLZ 마 (ma) don't-INF
16.27 은지: 농담이야 (nongdamiya) joke-is-INF。걱정하지 (geokjeonghaji) worry-NMLZ 마 (ma) don't-INF，같이 (gati) together 하면 (hamyeon) if-do 돼 (dwae) okay-INF
16.28 지훈: 이래서 (iraeso) because-of-this 혼자 (honja) alone 살면 (salmyeon) if-live 안 (an) not 되는 (doeneun) work-PRES 거야 (geoya) thing-is-INF
16.29 은지: 맞아 (maja) right。혼자는 (honjaneun) alone-TOPIC 못 (mot) can't 살아 (sara) live-INF
16.30 둘: 같이 (gati) together 살자 (salja) let's-live-INF！
16.16 「설거지 할 수 있어?」 "'Can you do the dishes?'" 16.17 「지금 못 해. 손이 다쳤어.」 "'Can't right now. My hands are injured.'" 16.18 「아, 그럼 청소는?」 "'Ah, then what about cleaning?'" 16.19 「청소는 안 할 거야. 어제 했잖아.」 "'I'm not doing cleaning. I did it yesterday.'" 16.20 「맞아, 미안. 그럼 나 다 할게.」 "'You're right, sorry. Then I'll do everything.'" 16.21 「아니야, 그렇게 하지 마. 내가 빨래는 할 수 있어.」 "'No, don't do it like that. I can do the laundry.'" 16.22 「손 안 아파?」 "'Doesn't your hand hurt?'" 16.23 「빨래는 손을 많이 안 써도 돼.」 "'Laundry is fine without using the hands much.'" 16.24 「그럼 요리는 내가 할게. 잘 못 하지만.」 "'Then I'll do the cooking. Though I can't do it well.'" 16.25 「[웃으며] 지훈이 요리를 못 하는 건 알아.」 "'[laughing] I know you can't cook, Jihun.'" 16.26 「야! 그렇게 말하지 마.」 "'Hey! Don't say it like that.'" 16.27 「농담이야. 걱정하지 마, 같이 하면 돼.」 "'It's a joke. Don't worry, we'll be fine together.'" 16.28 「이래서 혼자 살면 안 되는 거야.」 "'This is why you can't live alone.'" 16.29 「맞아. 혼자는 못 살아.」 "'Right. You can't live alone.'" 16.30 「같이 살자!」 "'Let's live together!'"
16.16 「설거지 할 수 있어?」 16.17 「지금 못 해. 손이 다쳤어.」 16.18 「아, 그럼 청소는?」 16.19 「청소는 안 할 거야. 어제 했잖아.」 16.20 「맞아, 미안. 그럼 나 다 할게.」 16.21 「아니야, 그렇게 하지 마. 내가 빨래는 할 수 있어.」 16.22 「손 안 아파?」 16.23 「빨래는 손을 많이 안 써도 돼.」 16.24 「그럼 요리는 내가 할게. 잘 못 하지만.」 16.25 「[웃으며] 지훈이 요리를 못 하는 건 알아.」 16.26 「야! 그렇게 말하지 마.」 16.27 「농담이야. 걱정하지 마, 같이 하면 돼.」 16.28 「이래서 혼자 살면 안 되는 거야.」 16.29 「맞아. 혼자는 못 살아.」 16.30 「같이 살자!」
-잖아 (janha) — "as you know / didn't I?": 했잖아 (I did it, as you know / didn't I?). Appeals to shared knowledge with mild reproach. Very common in Korean conversation when reminding someone of something they should already know.
-아/어도 되다 — "it's okay to": 안 써도 돼 (it's okay not to use). -지 않아도 되다 / 안 -아도 되다 = "don't have to." Essential Korean permission/exemption construction.
이래서 ~ 안 되다 — "this is why ~ doesn't work": 이래서 혼자 살면 안 되는 거야 (this is why living alone doesn't work). Common resigned conclusion in informal speech when something proves a general truth.
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
안 (an) — IPA: /an/ — Before consonants: /an/. Before vowels links to next syllable: 안 왔어 → [a.nwasseo].
못 (mot) — IPA: /mot̚/ — Final ㅅ unreleased before consonants. Before ㅎ: 못 해 → [모태] (aspiration absorbs ㅎ).
✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾ ✾ ❦ ✾ ❦ ✾
---