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～ないわけにはいかない

B1 noun 9분 분량

～ないわけにはいかない

연습하기 예시 노트와 팁 ～ないわけにはいかない 30초 만에

설명 ～ないわけにはいかない in your Level:

At the A1 level, you usually learn 'must' as '~nakereba naranai'. This phrase '～ないわけにはいかない' is much more advanced. For now, just think of it as a very strong 'I have to' that you use when you feel like you would be a bad person or a bad friend if you didn't do something. Imagine your friend gives you a present; you feel you 'must' give one back. That feeling is what this grammar is for. It is like saying 'I can't not do it.' You won't need to use this yet, but you might hear it in cartoons when a hero feels they have to save someone.

무료 가입하고 전체 설명 읽기

At the A2 level, you are starting to learn how to connect sentences. '～ないわけにはいかない' is a way to say 'I must' because of a specific reason. It uses the 'Nai-form' (negative form) of verbs. For example, 'Tabenai' (don't eat) becomes 'Tabenai wake ni wa ikanai' (I must eat). You use this when you feel a social pressure. For example, if your grandma makes a big cake for you, you 'cannot avoid eating' it, even if you are full. It is more about manners and social rules than just 'rules' like laws.

무료 가입하고 전체 설명 읽기

At the B1 level, you should start using '～ないわけにはいかない' to express social obligations (giri). This is a 'double negative' construction: 'not doing' + 'cannot go/work.' It means the situation is such that not doing the action is not an option. It is commonly used in professional settings. For example, if you are sick but have a huge presentation that only you can do, you might say 'Ikanai wake ni wa ikanai' (I cannot avoid going). It shows you are a responsible person who understands your duties to others.

At the B2 level, you should be able to distinguish '～ないわけにはいかない' from '~zaru o enai' and '~nakereba naranai'. While '~nakereba naranai' is a general obligation, '～ないわけにはいかない' specifically highlights the speaker's internal sense of 'propriety' or 'social expectation.' It often implies a psychological struggle where the speaker might want to do something else, but their conscience or the fear of social friction prevents them from doing so. You will see this often in business emails and formal discussions where maintaining relationships is key.

무료 가입하고 전체 설명 읽기

At the C1 level, you should master the nuance of '～ないわけにはいかない' in literary and formal contexts. It often appears in discussions of ethics, where a character or person feels a profound moral imperative. It can also be conjugated into the 'te-form' (~nai wake ni wa ikanakute) to explain the motivation behind a complex series of actions. You should also recognize its formal version, '~nai wake ni wa mairimasen,' used in high-level business or humble speech to show extreme respect while acknowledging a necessary action.

무료 가입하고 전체 설명 읽기

At the C2 level, '～ないわけにはいかない' is used to navigate the most delicate social and philosophical nuances. It represents the 'social glue' of Japanese culture—the recognition that individual desires are often secondary to collective harmony or long-standing obligations. You can use it to describe historical events where leaders felt compelled to act due to the 'tide of the times' or to analyze character motivations in classic literature where the conflict between 'giri' (duty) and 'ninjo' (human feeling) is central. It is a tool for expressing the inevitability of human action within a structured society.

무료 가입하고 전체 설명 읽기

연습하기 예시 노트와 팁

～ないわけにはいかない 30초 만에

Used for social or moral 'musts' rather than strict rules.
Formed with [Verb-nai] + わけにはいかない.
Implies 'I can't not do it' due to social pressure.
Shows responsibility and consideration for others' feelings.

The Japanese grammar point ～ないわけにはいかない (nai wake ni wa ikanai) is a sophisticated double-negative construction that translates roughly to 'must,' 'have to,' or 'cannot avoid doing.' However, unlike the standard ~nakereba naranai, which denotes a general or objective necessity, this expression carries a heavy weight of social obligation, personal conscience, or psychological pressure. It suggests that while the speaker might not necessarily want to do something, the situation or their sense of duty makes it impossible to avoid. It is the language of social grace, professional responsibility, and the complex web of human relationships known in Japan as giri (obligation).

The Nuance of Choice: This structure implies that there is a choice, but choosing the negative path (not doing the action) would lead to social friction, a loss of face, or a guilty conscience. It is the 'I really should' that borders on 'I absolutely must' because of the context.
Grammatical Breakdown: The phrase is composed of the negative verb form (~nai), the noun 'wake' (reason/circumstance), the particle 'ni wa' (for/as for), and 'ikanai' (cannot go/will not work). Literally, it means 'not doing [it] as a reason/circumstance cannot go forward.'

"Since everyone else is attending the boss's retirement party, I cannot avoid going as well, even though I have other plans."
— Typical Social Context

In daily life, you will hear this when people discuss tasks they feel compelled to perform. For instance, if a neighbor helps you move, you nai wake ni wa ikanai when they later ask for a small favor. It is the glue of Japanese social reciprocity. It is frequently used in business settings to express that a certain action is required to maintain professional standards or to satisfy a client's expectations. It is less about rules written in a book and more about the unwritten rules of the heart and society.

Furthermore, the expression can be used in self-reflection. When facing a personal challenge, one might say they 'cannot not try' because their pride or personal values demand it. It bridges the gap between external pressure and internal resolve. It is a very 'human' grammar point because it acknowledges the conflict between personal desire and external expectation. It is often contrasted with ~zaru o enai, which is even more restrictive and often implies that there are absolutely no other physical or logical options remaining, whereas nai wake ni wa ikanai still focuses on the 'reasonableness' or 'propriety' of the action.

Common Contexts: 1. Returning favors (O-kaeshi). 2. Attending mandatory-feeling social events. 3. Completing work that affects colleagues. 4. Following through on a promise made to a child or loved one. 5. Acting in accordance with professional ethics.

To master ～ないわけにはいかない, you must first be comfortable with the Nai-form of Japanese verbs. This grammar point attaches directly to the negative stem. It is a fixed phrase, meaning the 'wake ni wa ikanai' part rarely changes, though in very formal speech, you might hear 'ikanai' replaced with its formal counterpart 'ikimasen' or the even more humble 'mairimasen'.

The Basic Formula: [Verb in Nai-form] + わけにはいかない. For example: Taberu (to eat) -> Tabenai (not eat) -> Tabenai wake ni wa ikanai (Must eat / Cannot not eat).
Special Case: Suru Verbs: For 'suru' (to do), the negative is 'shinai'. Thus, 'shinai wake ni wa ikanai'. For example: Benkyou shinai wake ni wa ikanai (Cannot avoid studying).

明日は大切な会議があるので、準備をしないわけにはいかない。
(Ashita wa taisetsu na kaigi ga aru node, junbi o shinai wake ni wa ikanai.)
Because there is an important meeting tomorrow, I cannot avoid doing the preparation.

One key aspect of using this in sentences is the preceding reason. Because this grammar point expresses a 'forced' necessity, the sentence almost always begins with a 'node' (because), 'kara' (since), or a situational description that explains why the speaker feels they have no choice. Without this context, the sentence can feel incomplete or overly dramatic. It is the 'why' that justifies the 'cannot avoid.'

In more advanced usage, you might encounter this in the middle of a sentence as a reason for another action. For example: 'Awanai wake ni wa ikanakute, shusseki shimashita' (I couldn't not meet him, so I attended). Here, the 'nai wake ni wa ikanai' is conjugated into the 'te-form' (ikanakute) to connect to the next clause. This shows how the feeling of obligation led to the final action taken.

Leveling Up the Formality: Standard: ～ないわけにはいかない (Casual/Polite mix)
Polite: ～ないわけにはいきません (Business/Formal)
Very Formal: ～ないわけにはまいりません (Very Humble/Respectful)

You will encounter ～ないわけにはいかない in a variety of real-world scenarios, particularly those involving professional or social commitments. It is a staple of Japanese office culture. Imagine a salaryman who has worked twelve hours but is invited out for drinks by his department head. Even if he is exhausted, he might say to a colleague, 'Buchou no sasoi da kara, ikanai wake ni wa ikanai yo' (It's the manager's invitation, so I can't not go). This perfectly captures the essence of the phrase.

"The client traveled all the way from Hokkaido to see us, so we cannot avoid meeting them today."

In Japanese media, such as dramas and anime, this phrase is often used during dramatic turning points where a character must face a rival or fulfill a promise. It underscores the character's resolve and their adherence to a code of honor. For example, a hero might say they 'cannot not protect' their friends, signaling that their sense of duty outweighs their fear of death. It adds a layer of 'moral inevitability' to their actions.

In the News and Media: Journalists use this when discussing government actions or international relations. 'Given the current economic climate, the government cannot avoid raising taxes' (Seifu wa zeiritsu o agenai wake ni wa ikanai). It implies that external factors have forced the hand of the decision-makers.

In daily conversation among friends, it is used slightly more lightly but still retains its core meaning of social necessity. If a friend hosts a party and everyone is bringing food, you might say, 'Watashi mo nanika motte ikanai wake ni wa ikanai ne' (I guess I can't not bring something either). It shows you are aware of the group dynamic and want to contribute your fair share to avoid being the odd one out. It is a very polite way to acknowledge the 'rules' of a social situation without sounding like you are complaining about them.

The most common pitfall for learners is confusing ～ないわけにはいかない with other similar-sounding 'wake' expressions. Because the word 'wake' appears in many Japanese grammar points, it is easy to mix them up. The most frequent confusion is with ～わけではない (it doesn't mean that) or ～わけがない (it's impossible that). Remember that nai wake ni wa ikanai is always a double negative that results in a positive obligation.

Mistake 1: Physical vs. Social Necessity: Using it for physical needs like breathing or sleeping. You wouldn't say 'I cannot avoid breathing' using this grammar because breathing isn't a social choice or a moral obligation; it's a biological fact. For biological needs, use ~nakereba naranai.
Mistake 2: Forgetting the 'Nai': Some learners say 'V-dict wake ni wa ikanai' (e.g., Taberu wake ni wa ikanai). This actually means 'I cannot eat/I must not eat' (because of a reason). Adding the 'nai' changes it to 'I must eat.' The double negative is crucial for the 'must' meaning.

❌ Incorrect: 息をしないわけにはいかない (I cannot avoid breathing).
✅ Correct: 宿題をしないわけにはいかない (I cannot avoid doing my homework).

Another mistake is using it in situations where you have a completely free choice with no social consequences. If you are deciding whether to watch a movie or not, and there's no reason why you 'should' watch it, using nai wake ni wa ikanai sounds very strange. It makes it sound like someone is forcing you to watch the movie or that your moral character depends on it. Use it only when there is a 'reason' (wake) that prevents the negative outcome.

Lastly, pay attention to the level of formality. While it is common in speech, using it in a very casual setting with close friends might sound a bit stiff or overly serious unless you are joking about a 'serious' obligation like buying the next round of drinks. In very casual speech, people often shorten 'wake ni wa ikanai' to something more colloquial, but for learners, sticking to the full form is safer to avoid sounding unrefined.

Japanese has several ways to express 'must' or 'have to,' and choosing the right one depends on the source of the obligation. ～ないわけにはいかない sits in a unique spot between objective rules and subjective feelings. Comparing it to its alternatives helps clarify when to use it.

Comparison: ~nakereba naranai: This is the standard 'must.' It is used for rules, laws, and general necessities. 'I have to go to school' (Gakkou ni ikanakereba naranai). It is neutral. In contrast, nai wake ni wa ikanai implies a specific situational pressure or social duty.
Comparison: ~zaru o enai: This is much stronger and more formal. It means 'to have no choice but to...' usually because all other options are physically or logically exhausted. It sounds more reluctant and 'forced by fate' than nai wake ni wa ikanai, which is more about 'forced by social propriety.'
Comparison: ~beki da: This means 'should' or 'ought to.' It is a moral judgment. While nai wake ni wa ikanai also involves morals, beki da is a direct statement of what is right, whereas nai wake ni wa ikanai focuses on the inability to avoid the action.

"I must return the money I borrowed, not just because it's a rule, but because it's the right thing to do as a friend." (Kaesanai wake ni wa ikanai)

In summary, choose nai wake ni wa ikanai when you want to emphasize that your sense of duty, common sense, or the specific circumstances make the negative option socially or personally unacceptable. It is the grammar of 'doing the right thing' in a complex social world.

How Formal Is It?

재미있는 사실

The word 'wake' originally referred to the interpretation or meaning of a poem or text in ancient Japanese.

발음 가이드

UK naɪ wa.ke ni wa i.ka.na.i

US naɪ wa.ke ni wa i.ka.na.i

Japanese is a pitch-accent language. There is no heavy stress, but 'wa' and 'na' are slightly emphasized in this phrase.

라임이 맞는 단어

Ikanai (Will not go) Shiranai (Don't know) Tabenai (Don't eat) Kikanai (Don't listen) Awanai (Don't meet) Yamanai (Doesn't stop) Taranai (Not enough) Karanai (Doesn't wither)

자주 하는 실수

Pronouncing 'wake' like the English word 'wake' (should be wah-keh).
Skipping the 'ni wa' particles.
Confusing 'ikanai' with 'ikunai' (incorrect).
Stressing the wrong syllables.
Mumbling the double negative.

난이도

독해 3/5

Requires recognition of the 'nai' form and the specific 'wake' construction.

쓰기 4/5

Easy to mix up with other 'wake' grammar points.

말하기 4/5

Requires natural flow to sound like a native speaker expressing obligation.

듣기 3/5

Common in dramas and workplace conversations.

다음에 무엇을 배울까

선수 학습

わけ (reason) いく (to go) ない (negative) ～なければならない (must)

다음에 배울 것

～ざるを得ない～にすぎない～のみならず～に限らず

고급

～んばかりに～と相まって～を皮切りに～を禁じ得ない

알아야 할 문법

V-dict わけにはいかない

負けるわけにはいかない (Must not lose).

V-nai わけではない

嫌いなわけではない (It's not that I hate it).

V-dict わけがない

彼が犯人のわけがない (He couldn't be the culprit).

V-nai わけがない

知らないわけがない (There's no way he doesn't know).

V-dict わけだ

暑いわけだ。35度もある。 (No wonder it's hot. It's 35 degrees.)

무료 가입하고 전체 설명 읽기

수준별 예문

行かないわけにはいかない。

I must go (cannot not go).

Iku (go) -> Ikanai (not go) + wake ni wa ikanai.

食べないわけにはいかない。

I must eat it.

Taberu (eat) -> Tabenai (not eat).

言うわけにはいかない。

I cannot say it (must not say).

Note: This is 'V-dict + wake ni wa ikanai' (Must not).

勉強しないわけにはいかない。

I must study.

Suru (do) -> Shinai (not do).

手伝わないわけにはいかない。

I must help.

Tetsudau (help) -> Tetsudawanai.

謝らないわけにはいかない。

I must apologize.

Ayamaru (apologize) -> Ayamaranai.

見ないわけにはいかない。

I must look/watch.

Miru (see) -> Minai.

帰らないわけにはいかない。

I must go home.

Kaeru (return) -> Kaeranai.

友達の誕生日だから、行かないわけにはいかない。

Since it's my friend's birthday, I have to go.

Reason (birthday) + obligation.

先生に聞かれたから、答えないわけにはいかない。

Since the teacher asked, I have to answer.

Passive 'asked' + must answer.

母が作った料理だから、食べないわけにはいかない。

Since it's food my mom made, I have to eat it.

Personal obligation to family.

雨だけど、仕事に行かないわけにはいかない。

It's raining, but I have to go to work.

External circumstance vs duty.

約束したから、守らないわけにはいかない。

Since I promised, I have to keep it.

Moral obligation from a promise.

みんながやるなら、私もやらないわけにはいかない。

If everyone is doing it, I have to do it too.

Social pressure from a group.

お金を借りたから、返さないわけにはいかない。

Since I borrowed money, I have to pay it back.

Debt and responsibility.

明日テストがあるから、勉強しないわけにはいかない。

Since there is a test tomorrow, I have to study.

Necessity due to a deadline.

社長の誘いなので、出席しないわけにはいかない。

Since it's an invitation from the president, I cannot avoid attending.

Business hierarchy obligation.

彼にはお世話になったので、助けないわけにはいかない。

Since he helped me out, I cannot avoid helping him.

Concept of 'O-sewa' (favor/care).

大切な客が来るので、準備をしないわけにはいかない。

Since an important guest is coming, we must prepare.

Professional standard.

事実を知ってしまった以上、黙っているわけにはいかない。

Now that I know the truth, I cannot remain silent.

Moral imperative after learning a secret.

このプロジェクトの責任者だから、最後までやらないわけにはいかない。

Since I'm the person in charge of this project, I must see it through to the end.

Responsibility of a role.

病気の母を一人にするわけにはいかない。

I cannot leave my sick mother alone.

Note: 'V-dict + wake ni wa ikanai' (Must not).

チームのみんなが頑張っているのに、私だけ休むわけにはいかない。

While everyone on the team is working hard, I cannot be the only one to rest.

Solidarity and guilt.

反対意見があっても、今は進めないわけにはいかない。

Even if there are opposing opinions, we cannot avoid moving forward now.

Strategic necessity.

恩師の葬儀とあれば、遠くても行かないわけにはいかない。

If it's the funeral of my former teacher, I must go even if it's far.

Extreme social/moral obligation.

法律で決まっている以上、従わないわけにはいかないだろう。

Since it's decided by law, we probably have no choice but to obey.

Legal obligation + conjecture (~darou).

ここまで育ててもらった親に、恩返しをしないわけにはいかない。

I cannot avoid repaying my parents who raised me this far.

Filial piety (On-gaeshi).

彼の熱意に負けて、引き受けないわけにはいかなくなった。

Yielding to his enthusiasm, I found myself unable to refuse.

Psychological pressure from others' emotions.

一度引き受けた仕事は、途中で投げ出すわけにはいかない。

Once you've accepted a job, you cannot just abandon it halfway.

Professional integrity.

これだけ期待されているのだから、結果を出さないわけにはいかない。

Since so much is expected of me, I cannot avoid producing results.

Pressure of expectations.

隣の家の人に迷惑をかけたので、お詫びに行かないわけにはいかない。

Since I caused trouble for the neighbors, I must go apologize.

Japanese neighborhood etiquette.

生活がかかっているから、嫌な仕事でも辞めるわけにはいかない。

Since my livelihood depends on it, I cannot quit even a job I hate.

Economic necessity.

国家の存亡がかかっている局面において、決断を下さないわけにはいかない。

In a situation where the survival of the nation is at stake, a decision must be made.

High-level political discourse.

学問的誠実さに照らせば、この誤りを指摘しないわけにはいかない。

In light of academic integrity, I cannot avoid pointing out this error.

Professional ethics.

これほどまでの厚遇を受けて、彼の頼みを断るわけにはいかないだろう。

Having received such generous treatment, it would be impossible to refuse his request.

Reciprocity in high-status social circles.

被害者の無念を思えば、このまま引き下がるわけにはいかないのだ。

Thinking of the victims' regret, I cannot simply back down now.

Emotional/Moral drive.

伝統を守る立場として、この慣習を次世代に伝えないわけにはいかない。

As someone in a position to protect tradition, I must pass this custom to the next generation.

Cultural preservation duty.

契約書に明記されている以上、違約金を支払わないわけにはいかない。

Since it is clearly stated in the contract, we cannot avoid paying the penalty.

Contractual obligation.

自らの信念を貫くためには、この困難に立ち向かわないわけにはいかない。

In order to stick to one's beliefs, one cannot avoid facing this difficulty.

Existential/Personal resolve.

周囲の強い要望もあり、再出馬しないわけにはいかなくなった。

Due to strong requests from those around me, I've ended up in a position where I must run for office again.

Passive social pressure.

歴史の必然として、この変革を受け入れないわけにはいかない時代が来た。

As a historical inevitability, an era has arrived where we cannot avoid accepting this transformation.

Historical/Philosophical inevitability.

人道的な見地から、難民の受け入れを拒まないわけにはいかない状況だ。

From a humanitarian standpoint, the situation is such that we cannot avoid not refusing (must accept) the refugees.

Complex humanitarian ethics.

表現者としての矜持にかけて、この真実を語らないわけにはいかない。

Staking my pride as an artist/creator, I cannot avoid telling this truth.

Professional pride (kyouji).

組織の論理に抗えず、不本意ながらもその命に従わないわけにはいかなかった。

Unable to resist the logic of the organization, I had no choice but to obey the order, however reluctantly.

Conflict between individual and institution.

文明の利便性を享受している以上、環境への負荷を考慮しないわけにはいかない。

As long as we enjoy the conveniences of civilization, we cannot avoid considering the burden on the environment.

Global responsibility.

筆舌に尽くしがたい悲劇を前にして、涙を流さないわけにはいかなかった。

Faced with a tragedy beyond words, I could not help but shed tears.

Spontaneous emotional response as a moral necessity.

一国の主権に関わる問題であり、毅然とした態度を示さないわけにはいかない。

This is a matter concerning a nation's sovereignty, so we must show a resolute attitude.

Diplomatic necessity.

己の過去と向き合い、その罪を贖わないわけにはいかないと悟った。

I realized that I must face my past and atone for my sins.

Spiritual/Existential atonement.

자주 쓰는 조합

行かないわけにはいかない

言わないわけにはいかない

食べないわけにはいかない

返さないわけにはいかない

謝らないわけにはいかない

認めないわけにはいかない

参加しないわけにはいかない

助けないわけにはいかない

守らないわけにはいかない

出さないわけにはいかない

자주 쓰는 구문

そうしないわけにはいかない

— Cannot not do so; must do it that way.

状況を考えると、そうしないわけにはいかない。

出席しないわけにはいかない

— Cannot avoid attending (a meeting/party).

冠婚葬祭には出席しないわけにはいかない。

黙っているわけにはいかない

— Cannot remain silent (about an issue).

不正を見て黙っているわけにはいかない。

引き受けないわけにはいかない

— Cannot avoid accepting (a task/role).

頼まれた以上、引き受けないわけにはいかない。

断るわけにはいかない

— Cannot refuse (Note: V-dict form means 'must not refuse').

恩人の頼みは断るわけにはいかない。

見捨てるわけにはいかない

— Cannot abandon/leave behind (Must not abandon).

仲間を見捨てるわけにはいかない。

無視するわけにはいかない

— Cannot ignore (Must not ignore).

この問題は無視するわけにはいかない。

投げ出すわけにはいかない

— Cannot give up/throw away (Must not give up).

途中で投げ出すわけにはいかない。

信じないわけにはいかない

— Cannot not believe; must believe.

彼の言葉を信じないわけにはいかない。

待たないわけにはいかない

— Cannot not wait; must wait.

あと少しだから、待たないわけにはいかない。

자주 혼동되는 단어

～ないわけにはいかない vs ～わけではない

Means 'it doesn't mean that...' whereas 'nai wake ni wa ikanai' means 'must'.

～ないわけにはいかない vs ～わけがない

Means 'it's impossible that...' whereas 'nai wake ni wa ikanai' focuses on obligation.

～ないわけにはいかない vs ～ないことはない

Means 'it's not that I don't...' (mild possibility/agreement), whereas 'nai wake ni wa ikanai' is a strong 'must'.

관용어 및 표현

"顔を立てないわけにはいかない"

— Must save someone's face; must act to protect someone's reputation.

上司の顔を立てないわけにはいかない。

Social/Business

"義理を欠くわけにはいかない"

— Cannot fail in one's social obligations.

親戚付き合いで義理を欠くわけにはいかない。

Traditional

"筋を通さないわけにはいかない"

— Must do things the proper/logical way; must follow protocol.

けじめとして筋を通さないわけにはいかない。

Formal

"兜を脱がないわけにはいかない"

— Must admit defeat (Literally: cannot not take off the helmet).

彼の才能には兜を脱がないわけにはいかない。

Idiomatic

"けじめをつけないわけにはいかない"

— Must bring things to a proper conclusion/settlement.

今回の件はけじめをつけないわけにはいかない。

Serious

"恩を返さないわけにはいかない"

— Must return a favor.

これだけお世話になって、恩を返さないわけにはいかない。

Social

"面目を保たないわけにはいかない"

— Must maintain one's honor/reputation.

リーダーとして面目を保たないわけにはいかない。

Formal

"後には引けないわけにはいかない"

— Cannot retreat; must keep going forward.

ここまで来たら後には引けないわけにはいかない。

Determined

"白黒つけないわけにはいかない"

— Must clarify right from wrong; must decide the outcome.

どっちが正しいか白黒つけないわけにはいかない。

Decisive

"一肌脱がないわけにはいかない"

— Must lend a helping hand/step up.

親友のピンチなら、一肌脱がないわけにはいかない。

Colloquial

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～ないわけにはいかない vs ～なければならない

Both mean 'must'.

Nakereba naranai is for general rules; Nai wake ni wa ikanai is for social/situational pressure.

シートベルトをしなければならない (Rule) vs. 会議に出ないわけにはいかない (Social duty).

～ないわけにはいかない vs ～ざるを得ない

Both mean 'have to'.

Zaru o enai is more formal and implies having no other choice at all. Nai wake ni wa ikanai is about propriety.

中止せざるを得ない (Forced by fate) vs. 謝らないわけにはいかない (Forced by conscience).

～ないわけにはいかない vs ～べきだ

Both imply obligation.

Beki da is a moral 'should'. Nai wake ni wa ikanai is an inability to avoid doing it.

勉強するべきだ (It's good for you) vs. 勉強しないわけにはいかない (Context demands it).

～ないわけにはいかない vs ～わけにはいかない

Only differs by the 'nai'.

V-dict + wake ni wa ikanai means 'must NOT'. V-nai + wake ni wa ikanai means 'MUST'.

休むわけにはいかない (Must not rest) vs. 休まないわけにはいかない (Must rest).

～ないわけにはいかない vs ～ずにはいられない

Both are double negatives.

Zu ni wa irarenai is for spontaneous feelings you can't control. Nai wake ni wa ikanai is for conscious social actions.

泣かずにはいられない (Can't help crying) vs. 謝らないわけにはいかない (Must apologize).

문장 패턴

[Reason]から、[V-nai]わけにはいかない。

雨だけど、行かないわけにはいかない。

[Reason]ので、[V-nai]わけにはいかない。

社長の命令なので、しないわけにはいかない。

[V-nai]わけにはいかなくなった。

断れない状況になり、引き受けないわけにはいかなくなった。

[V-nai]わけにはいかなくて、[Action]。

行かないわけにはいかなくて、出席しました。

[Noun]として、[V-nai]わけにはいかない。

プロとして、認めないわけにはいかない。

[V-nai]わけにはまいりません。

これ以上お待たせするわけにはまいりません。

[Abstract Reason]以上、[V-nai]わけにはいかない。

真実を知った以上、語らないわけにはいかない。

[V-nai]わけにはいかないという[Noun]。

行かないわけにはいかないという義務感がある。

어휘 가족

명사

わけ (Reason/Circumstance)

わけまえ (Share/Portion)

동사

いく (To go/to work out)

いける (To be possible/good)

사용법

frequency

Common in professional and formal social interactions.

자주 하는 실수

Using dictionary form for 'must'. → Using Nai-form.
Taberu wake ni wa ikanai means 'I must NOT eat.' Tabenai wake ni wa ikanai means 'I MUST eat.'
Using it for biological needs. → Using ~nakereba naranai.
You don't say 'I must breathe' with this grammar unless breathing is a social duty.
Confusing with ~wake dewa nai. → Using ~nai wake ni wa ikanai.
~Wake dewa nai means 'It's not that...' which is completely different.
Forgetting the 'ni wa' particles. → Always include 'ni wa' or at least 'wa'.
The particles are essential for the grammatical structure to be recognized.
Using it without a context/reason. → Always provide a 'why'.
Without a reason, the 'wake' (reason) in the phrase has nothing to refer to.

팁

The Double Negative Logic

Think of it as 'Not doing it is not an option.' This helps you remember that the final meaning is positive (you must do it).

Giri and Ninjo

This phrase is perfect for expressing 'Giri' (social duty). Use it when your duty outweighs your 'Ninjo' (personal feelings).

Softening the Blow

Using this phrase can actually sound more polite than '~nakereba naranai' because it shows you've considered the circumstances.

Context is King

Always provide a 'reason' (kara/node) in your sentence. It makes the 'wake' (reason) in the grammar point make sense.

Must vs. Must Not

Don't forget: [Nai-form] = Must. [Dictionary-form] = Must not. This is a common point of confusion.

Returning Favors

This is the go-to phrase for 'On-gaeshi' (returning a favor). 'O-sewa ni natta kara, tetsudawanai wake ni wa ikanai.'

Reluctance

It often carries a nuance of 'I'd rather not, but I have to.' This makes it very useful for declining other offers.

Professionalism

In business, use it to show that you are following through on commitments despite difficulties.

Catch the Ending

The difference between 'ikanai' (must) and 'ikenai' (cannot) is small but important. Listen carefully to the vowels.

The 'Way' Mnemonic

Think of 'Wake' as a 'Way.' If the way 'won't go' (ikanai) without the action, you must do the action.

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기억법

Think: 'NOT doing it (Nai) + is a WAY (Wake) + that won't GO (Ikanai).' If the way won't go, you HAVE to change it by doing the action!

시각적 연상

Imagine a road blocked by a giant 'NO' sign. To move forward (iku), you have to remove the 'NO' (nai) by doing the task.

Word Web

Obligation Giri Duty Social Pressure Must Double Negative Propriety Responsibility

챌린지

Try to think of one thing you 'must' do today because of a friend or family member, and say it using 'nai wake ni wa ikanai'.

어원

Comes from the Japanese word 'wake' (訳), meaning reason, meaning, or circumstance, combined with 'ni wa' (topic marker/direction) and 'ikanai' (the negative of 'iku', to go).

원래 의미: Literally 'It cannot go forward as a reason/situation [if not done].'

Japonic

문화적 맥락

Be careful not to use this for things that are actually illegal or harmful; it implies a 'proper' social obligation.

In English, we often say 'I can't really say no' or 'I'm kind of obligated to go.' This matches the Japanese nuance perfectly.

Used frequently in 'Salaryman' manga to show the pressures of office life. Common in Samurai dramas (Jidaigeki) when a warrior must follow a lord's order. Appears in the lyrics of J-Pop songs about unavoidable love or destiny.

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실제 사용 상황

Business settings

出席しないわけにはいかない
報告しないわけにはいかない
確認しないわけにはいかない
謝罪しないわけにはいかない

Family obligations

帰省しないわけにはいかない
手伝わないわけにはいかない
お祝いしないわけにはいかない
連絡しないわけにはいかない

Friendships

助けないわけにはいかない
お返しをしないわけにはいかない
祝わないわけにはいかない
行かないわけにはいかない

Personal Ethics

言わないわけにはいかない
守らないわけにはいかない
立ち向かわないわけにはいかない
認めないわけにはいかない

Legal/Rules

支払わないわけにはいかない
従わないわけにはいかない
提出しないわけにはいかない
守らないわけにはいかない

대화 시작하기

"明日、どうしても行かないわけにはいかない場所はありますか？"

"最近、やらないわけにはいかなくて大変だったことは何ですか？"

"友達の頼みなら、どんなことでも断らないわけにはいかないと思いますか？"

"仕事で、嫌でもしないわけにはいかない業務はありますか？"

"日本社会では、なぜ「行かないわけにはいかない」という状況が多いと思いますか？"

일기 주제

今日、あなたが「しないわけにはいかない」と感じた義務について書いてください。

自分の良心に従って「言わないわけにはいかない」と思った経験を詳しく説明してください。

社会的な義理（giri）と自分の気持ちがぶつかった時、どうしますか？

「行かないわけにはいかない」という気持ちは、ストレスだと思いますか、それとも責任感だと思いますか？

将来、成功するために「しないわけにはいかない」努力は何だと思いますか？

자주 묻는 질문

10 질문

No. This is for social or moral obligations, not physical needs. For physical needs, use 'nakereba naranai'.

The first implies social pressure (e.g., going to a boss's party), while the second is a general requirement (e.g., going to work).

Yes, but it sounds a bit serious. You might use it to emphasize that you really have no choice because of a friend.

Often, yes. It suggests that even if you don't want to, you feel you must. However, it can also just express a very strong sense of duty.

No, it is used with verbs. To use it with an adjective, you must change the adjective into a verb form like 'naru' (e.g., shizuka ni shinai wake ni wa ikanai - must be quiet).

Usually hiragana (わけ) in this grammar point, but the kanji is 訳.

Change 'ikanai' to 'ikanakatta' (e.g., shinai wake ni wa ikanakatta - I had to do it).

Yes, but that means 'I must NOT eat' (e.g., because I'm on a diet). You need the 'nai' to mean 'must'.

～ないわけにはまいりません (nai wake ni wa mairimasen).

Yes, it is a common N3/N2 level grammar point (CEFR B1/B2).

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