Patterns in this category express the speaker's judgment, evaluation, or assertion about what should be (obligation), what must be the case (expectation/certainty), what something amounts to (identity/minimization), or how extreme something is. Key distinctions: べきだ is personal moral judgment, はずだ is logical deduction from evidence; にきまっている is emotive certainty, stronger than はずだ; にほかならない positively asserts identity, while にすぎない downgrades; きわまりない is a stiff negative superlative, の極み is a literary pinnacle that works for both positive and negative.
Quick Reference
〜べきだ
Personal moral obligation — 'I/you should'. Based on the speaker's own judgment.
〜はずだ
Logical expectation from evidence — 'it should be the case that'. Not about obligation.
〜にきまっている
Absolute conviction, stronger and more emotive than はずだ. 'Of course it will.'
〜しかない
Only one option remains — resigned or determined 'can only do X'.
〜ものだ
General moral norm stated as objective truth. 'This is how things are done.'
〜にほかならない
Forceful identity assertion — 'nothing other than X'. Positively reveals essence.
〜にすぎない
Minimizes and downgrades — 'merely X, nothing more'. Sets a low ceiling.
〜というものだ
Conclusive judgment about what something essentially means. 'That's what X is.'
〜まい
Formal negative — firm resolve NOT to do, or negative conjecture. Literary.
〜までだ
Calm resolve or limiting finality — 'I'll just do X (no big deal)' / 'it's merely X'.
〜に値する
Evaluation of merit — worthy of praise, attention, trust, punishment, etc.
〜と言わざるを得ない
Reluctant forced conclusion — 'I hate to say it, but it must be said.'
Extreme degree, almost always negative — 'utterly X'. Formal, stiff.
〜の極み
Literary/ceremonial pinnacle — 'the height of X'. Works for both positive and negative.
01
N4JLPT N4 · 1 Grammar
grammar.pattern · 文型
〜はずだ
N4
Meaning · 意味
Should be; is expected to; it is supposed that (logical conclusion from known facts)
Conjugation · 接続
V / イAdj / NaAdj-な / N-の + はずだ
Expresses a logical expectation or reasoned conclusion based on evidence or common sense — not moral obligation. はずがない / はずはない means 'cannot be' / 'there's no way'. The speaker is confident but not absolutely certain. Contrast with べきだ: はずだ is about what is expected to be true; べきだ is about what should be done.
Should; ought to (moral/social obligation based on the speaker's judgment)
Conjugation · 接続
V-辞書形 + べきだ （する → すべきだ / するべきだ）
Expresses that doing something is the right, proper, or morally obligated course of action. Based on the speaker's judgment, not external rules. Negative: 〜べきではない ('should not'). Past: 〜べきだった ('should have'). する can take either すべき (more formal) or するべき. From the judgment perspective, べきだ reflects the speaker's reasoned conclusion about what is right in a specific situation — a personal assessment. For the parallel entry emphasizing obligation and social duty, see the Obligation, Permission & Advice group.
Examples · 例文
01
学生はしっかり勉強するべきだ。
がくせいはしっかりべんきょうするべきだ。
Students should study diligently.
02
約束は必ず守るべきだ。
やくそくはかならずまもるべきだ。
Promises should always be kept.
03
あの時、彼に謝るべきだった。
あのとき、かれにあやまるべきだった。
I should have apologized to him back then.
04
他人の悪口を言うべきではない。
たにんのわるぐちをいうべきではない。
One should not speak ill of others.
grammar.pattern · 文型
〜にきまっている
N3
Meaning · 意味
It is certain that ~; surely ~; bound to ~ (speaker's absolute conviction)
Conjugation · 接続
V / イAdj / NaAdj / N + にきまっている
Expresses the speaker's absolute conviction that something is or will be the case — stronger and more emotive than はずだ. Carries a tone of 'what else could it be?' or 'obviously'. Colloquial; the politeness is carried by the final verb (にきまっています). Often used with emphatic adverbs like もちろん, 絶対に.
Examples · 例文
01
そんなことをしたら、怒られるにきまっている。
そんなことをしたら、おこられるにきまっている。
If you do something like that, of course you'll get told off.
02
毎日練習すれば、上手になるにきまっている。
まいにちれんしゅうすれば、じょうずになるにきまっている。
If you practice every day, you're bound to improve.
03
こんなにたくさんの宿題、終わるにきまっていない。
こんなにたくさんのしゅくだい、おわるにきまっていない。
With this much homework, there's no way I can finish.
Have no choice but to ~; there is nothing to do but ~; can only ~
Conjugation · 接続
V-辞書形 + しかない
Expresses that only one course of action remains — the speaker sees no other viable option. Similar to 〜ほかない and 〜よりほかない. More resigned and determined than 〜ざるを得ない (which implies reluctance). Often used in situations where external circumstances force a choice. From the judgment perspective, しかない reflects the speaker's logical conclusion that only one path remains — a reasoned assessment of the situation's constraints. For the parallel entry emphasizing necessity and the acceptance of having no alternative, see the Obligation, Permission & Advice group.
Examples · 例文
01
こうなったら、やるしかない。
こうなったら、やるしかない。
Now that it's come to this, there's nothing to do but go for it.
02
バスがないので、歩いて帰るしかない。
バスがないので、あるいてかえるしかない。
There's no bus, so we have no choice but to walk home.
03
誰も助けてくれないなら、自分で解決するしかない。
だれもたすけてくれないなら、じぶんでかいけつするしかない。
If no one will help, I have no choice but to solve it myself.
Should; ought to (general moral norm or social common sense)
Conjugation · 接続
V-辞書形 + ものだ / V-ない + ものだ
States a general moral principle or social norm as an objective truth. Different from べきだ: ものだ presents the norm as a widely accepted fact ('this is how things are done'), while べきだ is a personal judgment ('I think you should'). Also distinct from the emotional ものだ (heartfelt observation, in the Exclamation & Desire group) and 〜たものだ (past habit). Negative: 〜ものではない. From the judgment perspective, ものだ frames a norm as the speaker's evaluative conclusion — an assessment of what social standards properly dictate. For the parallel entry emphasizing obligation and normative duty, see the Obligation, Permission & Advice group.
Examples · 例文
01
年上の人には敬語を使うものだ。
としうえのひとにはけいごをつかうものだ。
One should use honorific language with one's elders.
02
約束は守るものだ。
やくそくはまもるものだ。
Promises are meant to be kept.
03
知らない人について行ってはいけないものだ。
しらないひとについてってはいけないものだ。
One must not follow strangers — that's a basic rule.
03
N2JLPT N2 · 4 Grammar
grammar.pattern · 文型
〜にほかならない
N2
Meaning · 意味
Nothing other than ~; precisely ~; exactly ~ (strong identity assertion)
Conjugation · 接続
N + にほかならない
Forcefully identifies something as precisely/essentially X, often revealing an underlying truth or essence. Formal and emphatic. Common in written analysis, speeches, and formal statements. The negation 〜にほかならない emphasizes that X is the sole true identity — 'it is nothing else but X'.
Examples · 例文
01
彼の成功は努力の結果にほかならない。
かれのせいこうはどりょくのけっかにほかならない。
His success is nothing other than the result of hard work.
02
これは運命にほかならない。
これはうんめいにほかならない。
This is nothing other than fate.
03
環境問題は、人間の活動の結果にほかならない。
かんきょうもんだいは、にんげんのかつどうのけっかにほかならない。
Environmental problems are nothing other than the consequence of human activity.
grammar.pattern · 文型
〜にすぎない
N2
Meaning · 意味
Merely ~; nothing more than ~; only ~ (downplaying or limiting)
Conjugation · 接続
V / イAdj / NaAdj / N + にすぎない
Downplays or minimizes the preceding element — 'it is no more than X.' Sets a ceiling on importance, quantity, or degree. Often used to dismiss, humble oneself, or correct an overestimation. Similar to ただ〜だけだ / 単なる〜だ but more formal and written. Contrast with にほかならない: にすぎない sets a low ceiling ('merely X'), while にほかならない asserts essence ('precisely X').
Examples · 例文
01
まだ始まったばかりにすぎない。
まだはじまったばかりにすぎない。
It has merely just begun.
02
私の意見はあくまで参考にすぎない。
わたしのいけんはあくまでさんこうにすぎない。
My opinion is nothing more than a reference.
03
その話は単なる噂にすぎない。
そのはなしはたんなるうわさにすぎない。
That story is nothing more than a rumor.
grammar.pattern · 文型
〜というものだ
N2
Meaning · 意味
That's what ~ is; that's the very definition of ~; it is precisely the case that ~ (speaker's conclusive judgment)
Conjugation · 接続
N / NaAdj-だ / V-辞書形 / イAdj + というものだ
Presents the speaker's conclusive judgment or definition of what something essentially is — often a commentary on human nature, social reality, or a situation. Carries a tone of 'this is the way things are / this is what it means.' Also used to express strong emotional evaluation (disapproval, admiration) in context. というもんだ is the casual spoken form.
Examples · 例文
01
困った時に助け合うのが友情というものだ。
こまったときにたすけあうのがゆうじょうというものだ。
Helping each other in hard times — that's what friendship is.
02
努力が報われてこそ成功というものだ。
どりょくがむくわれてこそせいこうというものだ。
Success is when hard work pays off — that's what it truly means.
03
約束を破るなんて、無責任というものだ。
やくそくをやぶるなんて、むせきにんというものだ。
Breaking a promise like that is what you'd call irresponsible.
A formal, somewhat literary negative form with two main uses: (1) negative volition — the speaker's firm determination NOT to do something ('I will not ~'); (2) negative conjecture — 'probably not the case.' More emphatic and written than 〜ないだろう or 〜ないつもりだ. Often used in internal monologue, formal writing, and set phrases. From the judgment perspective, まい is the speaker's conclusive negative assessment — a firm reasoned conclusion about what will not happen or what one will not do. For the parallel entry emphasizing negative resolution and determination, see the Obligation, Permission & Advice group.
Examples · 例文
01
もう二度と彼には頼むまい。
もうにどとかれにはたのむまい。
I will never ask him for anything again.
02
この秘密は誰にも話すまいと心に決めた。
このひみつはだれにもはなすまいとこころにきめた。
I resolved in my heart never to tell this secret to anyone.
03
彼はもう来るまい。
かれはもうくるまい。
He probably won't come anymore.
04
N1JLPT N1 · 6 Grammar
grammar.pattern · 文型
〜までだ
N1
Meaning · 意味
Just have to ~; that's all there is to it; there's nothing more to it than ~ (limiting resolve or minimizing)
Conjugation · 接続
V-辞書形 + までだ
Two closely related uses: (1) Expresses calm resolve — 'if things don't work out, I'll just do X' (no big deal). Often paired with もし〜ば / 〜たら conditions. (2) Limits a statement — 'it's merely X, nothing more.' Similar to 〜にすぎない for the limiting sense, but までだ adds a tone of finality or resolve. Variant: 〜までのことだ.
Examples · 例文
01
失敗したら、もう一度やり直すまでだ。
しっぱいしたら、もういちどやりなおすまでだ。
If I fail, I'll just start over — that's all.
02
誰も来なければ、一人でやるまでだ。
だれもこなければ、ひとりでやるまでだ。
If no one comes, I'll just do it alone — no big deal.
03
これは単なる提案にすぎないまでのことだ。
これはたんなるていあんにすぎないまでのことだ。
This is merely a suggestion, nothing more.
grammar.pattern · 文型
〜に値する
N1
Meaning · 意味
Is worthy of ~; deserves ~; is worth ~ (evaluation of merit)
Conjugation · 接続
N + に値する / V-辞書形 + に値する
Evaluates something as being worthy of or deserving a particular response — praise, attention, trust, punishment, etc. Can be positive or negative. Formal and often used in written commentary, reviews, or analytical statements. The subject is the thing being evaluated; the complement is the response it merits.
Examples · 例文
01
彼の功績は称賛に値する。
かれのこうせきはしょうさんにあたいする。
His achievements are worthy of praise.
02
この映画は見るに値する作品だ。
このえいがはみるにあたいするさくひんだ。
This film is a work worth watching.
03
彼の行為は厳しい罰に値する。
かれのこういはきびしいばつにあたいする。
His actions deserve severe punishment.
grammar.pattern · 文型
〜と言わざるを得ない
N1
Meaning · 意味
Cannot but say ~; have no choice but to conclude ~ (reluctant but unavoidable assertion)
Conjugation · 接続
N-だ / NaAdj-だ / V / イAdj + と言わざるを得ない
Expresses that the speaker is compelled to state a conclusion, often one they wish they didn't have to reach. The tone is reluctant but firm — 'I don't want to say this, but the facts leave me no choice.' The underlying pattern is 〜ざるを得ない ('cannot but ~'), a formal negative-obligation construction using the classical negative ざる + を得ない. 〜と言わざるを得ない is its most frequent instantiation.
Examples · 例文
01
この結果は失敗と言わざるを得ない。
このけっかはしっぱいといわざるをえない。
I have no choice but to call this result a failure.
02
彼の態度は無責任と言わざるを得ない。
かれのたいどはむせきにんといわざるをえない。
I cannot but say his attitude is irresponsible.
03
これだけの証拠がある以上、彼が犯人と言わざるを得ない。
これだけのしょうこがあるいじょう、かれがはんにんといわざるをえない。
With this much evidence, one cannot but conclude he is the culprit.
Must not ~; shall not ~ (strong prohibition, archaic/formal)
Conjugation · 接続
V-辞書形 + べからず （する → すべからず）
An archaic but still-used strong prohibition form, equivalent to 〜てはいけない or 〜べきではない but much more formal and absolute. Most often seen on signs, official notices, and in legal/regulatory language. べからず is the classical negative of べし (the root also yielding modern べきだ). In modern contexts, it carries a weighty, institutional tone — 'it is forbidden to ~.'
Examples · 例文
01
この門に入るべからず。
このもんにはいるべからず。
Thou shalt not enter this gate.
02
許可なく写真を撮るべからず。
きょかなくしゃしんをとるべからず。
Photographs must not be taken without permission.
03
立ち入るべからず。
たちいるべからず。
Do not enter.
grammar.pattern · 文型
〜きわまりない
N1
Meaning · 意味
Extremely ~; utterly ~; the height of ~ (often negative evaluation)
Conjugation · 接続
NaAdj / N + きわまりない
Expresses that something is at the very extreme of a quality — almost always with negative connotation (失礼, 不愉快, 迷惑, 残念, etc.). Also written with kanji as 極まりない. The double-negative structure (極まり + ない = 'has no limit') creates an emphatic superlative. Formal and somewhat stiff; in speech, it conveys strong displeasure. Not used with positive qualities in modern Japanese.
Examples · 例文
01
彼の態度は不愉快きわまりない。
かれのたいどはふゆかいきわまりない。
His attitude is utterly unpleasant.
02
こんな時間に電話してくるとは、迷惑きわまりない。
こんなじかんででんわしてくるとは、めいわくきわまりない。
Calling at this hour is the height of inconsideration.
03
無礼きわまりない発言だ。
ぶれいきわまりないはつげんだ。
That remark is utterly rude.
grammar.pattern · 文型
〜の極み
N1
Meaning · 意味
The height of ~; the pinnacle of ~; the ultimate in ~ (extreme degree, literary)
Conjugation · 接続
N + の極み
Marks the absolute peak or ultimate degree of something. More literary and ceremonial than きわまりない. Can be used with both positive words (感激の極み, 光栄の極み) and negative ones (無礼の極み, 疲労の極み). Often appears in formal speeches, letters, and set phrases. The noun before の極み is typically a kanji compound expressing an abstract quality.
Examples · 例文
01
感無量の極みです。
かんむりょうのきわみです。
I am at the height of deep emotion.
02
贅沢の極みを尽くした生活。
ぜいたくのきわみをつくしたせいかつ。
A lifestyle that reaches the pinnacle of luxury.
03
あの発言は無礼の極みだ。
あのはつげんはぶれいのきわみだ。
That remark is the height of rudeness.
Pairwise Comparisons · 比較
〜べきだ vs 〜はずだ
べきだ is about moral obligation (what one should DO); はずだ is about logical expectation (what one expects IS the case). Confusing because English 'should' covers both.
Dimension
〜べきだ
〜はずだ
Domain
Action / obligation (deontic)
Fact / expectation (epistemic)
Question being answered
What is the right thing to do?
What is likely to be true?
Past form
べきだった — 'should have done' (regret)
はずだった — 'was supposed to' (unmet expectation)
A teacher telling a student to study more.
Better fit — 〜べきだ
もっと勉強するべきだよ。
もっとべんきょうするべきだよ。
You should study more.
Alternative — 〜はずだ
もっと勉強するはずだよ。
もっとべんきょうするはずだよ。
(Unnatural — would mean 'I expect you'll study more,' not giving advice)
Why is this a better fit? はずだ expresses what the speaker expects to be true based on reasoning. It cannot give advice or express obligation.
Inferring that someone has already arrived based on the time and train schedule.
Better fit — 〜はずだ
彼はもう着いているはずだ。
かれはもうついているはずだ。
He should have arrived by now.
Alternative — 〜べきだ
彼はもう着いているべきだ。
かれはもうついているべきだ。
(Unnatural — arriving is not a moral obligation; べきだ would suggest he has a duty to arrive)
Why is this a better fit? べきだ expresses that an action is morally or socially right. It cannot express a factual inference about what has already happened.
〜べきだ vs 〜ものだ
Both mean 'should', but べきだ is a personal, specific judgment while ものだ presents the norm as an objective, widely accepted truth. べきだ is the speaker's voice; ものだ is the voice of society.
Dimension
〜べきだ
〜ものだ
Source of obligation
Speaker's personal judgment
General social norm / common sense
Target
Can address a specific person or situation
States a general principle (not typically directed at a specific person)
Tone
Direct, sometimes confrontational
Didactic, like a proverb or life lesson
Telling a specific friend they should apologize for something they did.
Better fit — 〜べきだ
君は彼に謝るべきだ。
きみはかれにあやまるべきだ。
You should apologize to him.
Alternative — 〜ものだ
君は彼に謝るものだ。
きみはかれにあやまるものだ。
(Awkward — ものだ sounds like a general platitude, not personal advice to a specific person)
Why is this a better fit? ものだ states a general norm. Using it to advise a specific person about a specific situation sounds detached and preachy.
Telling a child a general life lesson about respecting elders.
Better fit — 〜ものだ
年上の人を敬うものだよ。
としうえのひとをうやまうものだよ。
One should respect one's elders — that's how it is.
Alternative — 〜べきだ
年上の人を敬うべきだよ。
としうえのひとをうやまうべきだよ。
(Grammatical and acceptable, but sounds more like a personal demand than a life truth)
Why is this a better fit? べきだ is grammatically fine here, but it frames the statement as the speaker's personal opinion. ものだ frames it as a universal truth, which is more natural for imparting social norms.
〜にきまっている vs 〜はずだ
Both express confidence in a conclusion, but にきまっている is emotive, absolute, and often spoken; はずだ is rational, evidence-based, and more measured. にきまっている says 'obviously!'; はずだ says 'by all indications…'
Dimension
〜にきまっている
〜はずだ
Basis of judgment
Speaker's gut conviction, often emotional
Logical reasoning from known facts
Certainty level
Near-absolute — 'it's bound to be'
High confidence but not absolute — 'it should be'
Register
Colloquial, often in spoken Japanese
Neutral — used in both speech and writing
Checking the timetable and concluding the next train is at 3pm.
Better fit — 〜はずだ
次の電車は三時のはずだ。
つぎのでんしゃはさんじのはずだ。
The next train should be at 3 o'clock.
Alternative — 〜にきまっている
次の電車は三時にきまっている。
つぎのでんしゃはさんじにきまっている。
(Overly emphatic — sounds like you're insisting or stating the obvious rather than calmly reasoning from a timetable)
Why is this a better fit? にきまっている carries emotional insistence. For a neutral factual deduction from a timetable, はずだ is more natural.
Reacting to a reckless plan that is clearly going to fail.
Better fit — 〜にきまっている
そんな計画、失敗するにきまっている。
そんなけいかく、しっぱいするにきまっている。
A plan like that is bound to fail — obviously!
Alternative — 〜はずだ
そんな計画は失敗するはずだ。
そんなけいかくはしっぱいするはずだ。
(Grammatical but too measured — misses the dismissive, emotional punch of にきまっている)
Why is this a better fit? はずだ is rationally measured. In a context demanding emotional dismissal, にきまっている fits the speaker's attitude better.
〜にほかならない vs 〜にすぎない
にほかならない positively asserts that something IS precisely X (identity emphasis); にすぎない negatively says something is NO MORE than X (ceiling/minimization). One elevates; one caps.
Analyzing the cause of a company's success in a business article.
Better fit — 〜にほかならない
この会社の成功は社員の努力のたまものにほかならない。
このかいしゃのせいこうはしゃいんのどりょくのたまものにほかならない。
This company's success is nothing other than the fruit of its employees' hard work.
Alternative — 〜にすぎない
この会社の成功は社員の努力のたまものにすぎない。
このかいしゃのせいこうはしゃいんのどりょくのたまものにすぎない。
(Unnatural — にすぎない downgrades the achievement, contradicting the context of praise)
Why is this a better fit? にすぎない would mean the success is 'merely' the result of effort — as if that were a small thing. にほかならない positively identifies and elevates.
Clarifying that a reported figure is just an estimate, not confirmed data.
Better fit — 〜にすぎない
その数字はあくまで推定にすぎない。
そのすうじはあくまですいていにすぎない。
That figure is merely an estimate, nothing more.
Alternative — 〜にほかならない
その数字は推定にほかならない。
そのすうじはすいていにほかならない。
(Misleading — にほかならない would emphasize that it IS precisely an estimate, which sounds like you're making a strong positive claim when you're actually trying to downplay it)
Why is this a better fit? にほかならない positively asserts identity. When the goal is to downplay or set a ceiling, にすぎない is the correct choice.
〜きわまりない vs 〜の極み
Both express extreme degree, but きわまりない is stiff, almost always negative, and doubles as spoken displeasure; の極み is more literary/ceremonial and can be positive or negative. きわまりない uses a double-negative structure ('has no limit'); の極み directly names the pinnacle.
Dimension
〜きわまりない
〜の極み
Connotation
Almost exclusively negative
Positive or negative
Register
Formal, stiff; can express live displeasure in speech
Literary, ceremonial; often in set phrases and formal addresses
Structure
NaAdj / N + きわまりない (double-negative)
N + の極み (direct pinnacle)
Reacting with visible irritation to someone's rude behavior at a meeting.
Better fit — 〜きわまりない
今の発言は不愉快きわまりない。
いまのはつげんはふゆかいきわまりない。
That remark just now was utterly unpleasant.
Alternative — 〜の極み
今の発言は不愉快の極みだ。
いまのはつげんはふゆかいのきわみだ。
(Slightly unnatural in live speech — の極み is more declamatory and ceremonial; it sounds like you're issuing a formal pronouncement rather than reacting in the moment)
Why is this a better fit? の極み is more suited to written or ceremonial contexts. For live, irritated reaction, きわまりない is more natural.
Giving a formal farewell speech at a retirement ceremony.
Better fit — 〜の極み
感激の極みでございます。
かんげきのきわみでございます。
I am at the very height of gratitude.
Alternative — 〜きわまりない
感激きわまりないです。
かんげききわまりないです。
(Awkward — きわまりない is almost always negative, so '感激きわまりない' sounds odd. Even if forced, the stiff negative tone clashes with a ceremonial occasion)
Why is this a better fit? きわまりない strongly gravitates toward negative qualities. の極み freely takes positive nouns and suits ceremonial contexts perfectly.
