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〜にわたって

B1 phrase #3,500 よく出る 7分で読める

〜にわたって

上位3,500

練習する例文メモとヒント 〜にわたって 30秒で

解説 〜にわたって in your Level:

At the A1 level, you usually learn simple ways to talk about time, like 'for two hours' (ni-jikan) or 'from Monday' (getsuyoubi kara). You don't need to use '〜にわたって' yet because it is quite formal. However, it's helpful to know that in Japanese, there are special ways to say 'all through the time' when you want to sound very serious. For now, think of it as a fancy way to say 'for' or 'during' a long period. You might see it on signs or hear it in very polite announcements at a train station or airport. If you hear someone say 'ni watatte,' they are talking about a big amount of time or a large space that something covered.

無料登録して完全な解説を読む

At the A2 level, you are starting to use more particles and connectors. You might know '〜から〜まで' (from... to...). The phrase '〜にわたって' is similar but more formal. It is used when you want to emphasize that something happened through the *whole* time or across a *whole* area. For example, instead of just saying 'it rained for three days,' a news reporter would say 'it rained over three days' using 'ni watatte.' It makes the duration sound more important or large. You should start recognizing this in reading passages about history or the environment. It always follows a noun that shows time (like years) or space (like meters).

無料登録して完全な解説を読む

As a B1 learner, you are expected to understand and start using '〜にわたって.' This is a key grammar point for the JLPT N3 level. It indicates that an action or state extends over a particular range of time or space. The nuance is 'throughout' or 'over the course of.' It is used in formal situations like speeches, reports, and news. You should also learn the variation '〜にわたる' which is used before a noun. For example, 'a series of meetings spanning three days' would be 'mikka-kan ni wataru kaigi.' This allows you to describe things with more detail and professional flair. Pay attention to the fact that it implies the entire span was involved.

At the B2 level, you should be comfortable using '〜にわたって' in written essays and formal presentations. You should also be able to distinguish it from similar structures like '〜にかけて' and '〜に及ぶ.' While 'ni watatte' suggests the entire range is covered, 'ni kakete' focuses on the movement from a start to an end point. You will frequently see 'ni watatte' in academic journals and business white papers to describe the scope of research or market trends. You should also be aware of the 'ni wata-ri' form, which is the continuative (ren'youkei) form used to link sentences in formal writing, adding a sophisticated flow to your Japanese.

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For C1 learners, '〜にわたって' is a standard tool in your repertoire for precise communication. You should use it to define the parameters of complex arguments or data sets. At this level, you should also recognize its use in classical-leaning or highly literary contexts where it might describe abstract concepts, such as 'influence spanning across different fields of thought.' You should be sensitive to the rhythmic properties it brings to a sentence, often balancing a long noun phrase before it. Mastery at this level involves knowing exactly when 'ni watatte' is too heavy and when it is necessary to convey the 'exhaustive' nature of a process versus a simple duration.

無料登録して完全な解説を読む

At the C2 level, '〜にわたって' is used with total naturalness in high-level discourse. You understand the subtle historical connection to the verb 'wataru' and how this informs its semantic range. You can use it to articulate nuanced differences in legal, political, or scientific documents where the exact boundaries of a span are critical. You are also capable of identifying when a writer uses this phrase to create a sense of 'grandeur' or 'gravity' in their prose. Whether analyzing a 500-page historical treatise or delivering a keynote speech, you use 'ni watatte' and its variants to provide clear, professional, and rhythmically sophisticated structure to your Japanese.

無料登録して完全な解説を読む

練習する例文メモとヒント

〜にわたって 30秒で

Used to show an action or state spans a whole period or area.
Commonly found in news reports, business, and academic writing.
Derived from the verb 'wataru' (to cross), implying a span.
Requires a noun representing a range (time, distance, or number).

The grammatical phrase 〜にわたって (ni watatte) is a sophisticated functional expression used to indicate that an action, state, or phenomenon extends across a specific range of time or space. At its core, it is derived from the verb 渡る (wataru), which means 'to cross' or 'to go over.' When used as a compound particle, it shifts from a literal physical crossing to a figurative coverage of a whole duration or area. It is most frequently encountered in formal writing, news reports, academic contexts, and professional business settings. Unlike simpler time markers like 'kara' (from) or 'kan' (for/during), 〜にわたって emphasizes the entirety and scale of the span being discussed.

Scope of Time: When applied to time, it suggests a continuous or repeated activity that spans hours, days, years, or even generations. It carries a nuance of 'throughout' or 'over the course of.'

Scope of Space: When applied to space, it describes a physical area covered by something, such as a forest fire spreading over several kilometers or a festival taking place across an entire city district.

会議は３日間にわたって行われました。
(The meeting was held over a period of three days.)

In this example, the speaker isn't just saying the meeting lasted three days; they are highlighting the duration as a significant span. This expression is vital for JLPT N3 and N2 levels because it allows speakers to move away from basic sentence structures toward more descriptive and professional Japanese. It is often paired with nouns that represent quantity, such as '10 years,' '50 kilometers,' or 'the whole region.' Understanding this phrase requires recognizing that it focuses on the breadth of the subject matter.

Furthermore, the variation 〜にわたり is the 'masu-stem' literary form, often used in written reports to connect clauses, while 〜にわたる + Noun acts as an adjective to describe a noun (e.g., 'a 10-year-long project'). This versatility makes it a powerhouse in technical and descriptive Japanese. Whether you are describing a series of experiments spanning decades or a typhoon affecting a vast coastline, this is the go-to structure for expressing extensive reach.

To use 〜にわたって correctly, you must follow a specific grammatical pattern: [Noun] + にわたって. The noun in question must be a word that represents a span, range, or quantity. It cannot be used with specific points in time like 'at 3 PM' or 'on Monday.' Instead, it requires words like 'three hours,' 'the entire week,' 'the whole country,' or 'all fields of study.'

Temporal Usage: Used when an action covers a period. Example: 彼は20年間にわたって、この研究を続けている。(He has been continuing this research over a period of 20 years.)

祭りは町全体にわたって盛り上がった。
(The festival was lively across the entire town.)

One of the most important aspects of this grammar is its formal tone. In casual conversation, Japanese speakers might prefer 'zutto' (all the time) or '...no aida' (during). However, in a professional presentation or a news broadcast, 〜にわたって provides the necessary weight and precision. It is also important to distinguish between にわたって (adverbial use) and にわたる (adjectival use). If you want to say 'A long-term war,' you would say 長期にわたる戦争 (Chouki ni wataru sensou).

Spatial Usage: Used when an event covers an area. Example: 被害は数キロにわたって広がった。(The damage spread over several kilometers.)

When constructing your sentences, ensure that the verb following the phrase describes something that can realistically happen over a range. Verbs like 'to continue,' 'to expand,' 'to hold (an event),' and 'to investigate' are common partners. You wouldn't say 'I ate an apple over 10 kilometers,' but you could say 'The apple orchards stretch over 10 kilometers.' This logical consistency is key to sounding natural.

You will encounter 〜にわたって in environments where formal or objective language is the standard. If you turn on the NHK evening news, you will almost certainly hear it during the weather report or the economic segment. Meteorologists use it to describe the path of a typhoon ('The storm caused rain over a wide area across Western Japan') or the duration of a heatwave ('The heat is expected to continue over the next week').

台風の影響は、九州全域にわたって見られます。
(The effects of the typhoon can be seen across the entire Kyushu region.)

In the academic world, this phrase is ubiquitous in research papers and lectures. Scholars use it to define the scope of their studies—whether it's a sociological survey spanning multiple demographics or a scientific experiment conducted over several months. It conveys a sense of thoroughness and academic rigor. If you are reading a history book, you will see it used to describe the reigns of emperors or the duration of historical eras (e.g., 'spanning the Edo period').

Business Context: In corporate meetings, managers use it to discuss project timelines or market reach. 'Our sales campaign will run over the next three months' would be phrased using this grammar to sound professional and planned.

Finally, in literature and high-end journalism, it adds a rhythmic flow to the prose. It allows for longer, more descriptive sentences that paint a picture of vastness. While you might not use it while grabbing a beer with friends, knowing it is essential for understanding the 'formal' side of Japanese life, from official government announcements to the narration of nature documentaries.

While 〜にわたって is a useful tool, learners often stumble by using it in contexts that are too casual or grammatically inappropriate. The most common mistake is using it with a single point in time. You cannot say '3時にわたって' (across 3 o'clock) because 3 o'clock is a point, not a span. You must use a duration like '3時間にわたって' (across 3 hours).

❌ 昨日、３時にわたって勉強した。
✅ 昨日、３時間にわたって勉強した。

Another frequent error is confusing it with 〜にかけて (ni kakete). While both deal with ranges, 'ni kakete' implies a fuzzy boundary (from A to B-ish) and is often used for weather or trends moving from one place/time to another. 'Ni watatte' implies the *entire* range is covered or included. If you say 'from Monday to Wednesday' using 'ni kakete,' the focus is on the transition. If you use 'ni watatte,' the focus is on the fact that the whole three-day period was filled with the activity.

Register Mismatch: Using this phrase in very casual settings can sound unnaturally stiff. If you tell your friend 'I slept over a span of 8 hours' using 〜にわたって, it sounds like a police report. Use '8-jikan neta' instead.

Finally, ensure the scale is appropriate. While grammatically possible, using 'ni watatte' for very short spans (like 2 seconds) sounds hyperbolic or sarcastic. It is best reserved for spans that feel substantial or significant in the context of the discussion.

Understanding the nuances between 〜にわたって and its synonyms is crucial for reaching an advanced level of Japanese. Several other expressions cover similar ground but carry different connotations or grammatical requirements.

〜にかけて (ni kakete): Focuses on the range from a start point to an end point. It is often less precise than 'ni watatte' and implies a gradual spread or transition between two points.

〜の間 (no aida): The standard way to say 'during' or 'between.' It is neutral and can be used in both casual and formal speech. It doesn't emphasize the 'scale' or 'breadth' as much as 'ni watatte' does.

比較: １０年間にわたって (Emphasizes the long 10-year span) vs. １０年の間 (Simply states the time period).

〜に及ぶ (ni oyobu): This is even more formal. It means 'to reach' or 'to extend to.' It is often used when the number or scale is surprisingly large or impressive (e.g., 'The debt reached 1 trillion yen').

Choosing the right one depends on your intent. If you want to impress upon your audience that a project was exhaustive and covered every possible angle over a long time, 'ni watatte' is your best choice. If you are just giving a timeline, 'kara...made' or 'no aida' is sufficient.

How Formal Is It?

豆知識

The kanji 渡 consists of the 'water' radical and the 'degree/time' component (度), perfectly representing its use for both space (water) and time (degree).

発音ガイド

UK ni wa.tat.te

US ni wa.tɑ.teɪ

Japanese is pitch-accented. In 'watatte', the pitch usually stays relatively flat or drops slightly at the end depending on the sentence melody.

韻が合う語

katatte (talked) waratte (laughed) shiratte (investigate - stem) mattere (wait) utatte (sang) tsukatte (used) hashitte (ran) yatte (did)

よくある間違い

Pronouncing 'watatte' as 'watate' (missing the double 't').
Confusing 'ni' with 'no'.
Stressing the 'wa' too heavily.
Mumbling the 'te' at the end.
Misreading the kanji 渡 if it appears in written form.

難易度

読解 3/5

Easy to recognize once the pattern is known.

ライティング 4/5

Requires knowing which nouns collocate well.

スピーキング 4/5

Hard to use naturally without sounding too stiff.

リスニング 3/5

Clear pronunciation makes it easy to hear.

次に学ぶべきこと

前提知識

渡る〜から〜まで〜の間期間

次に学ぶ

〜を通じて〜に及ぶ〜をきっかけに〜に際して

上級

〜を皮切りに〜の至り〜を限りに

知っておくべき文法

Noun + にわたる + Noun

３日間にわたる会議

Noun + にわたり (Ren'youkei)

調査は多方面にわたり、困難を極めた。

Difference from 〜にかけて

明日から明後日にかけて (Approximate range)

Difference from 〜の間

夏休みの間 (Simple time frame)

Use with counters

数回にわたって (Over several times)

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レベル別の例文

３日間にわたって、雨が降りました。

It rained over a period of three days.

A1 students should focus on the '3 days' part.

１週間にわたって、休みです。

It is a holiday for over a week.

Shows a span of one week.

長い時間にわたって、話をしました。

We talked over a long period of time.

Used with 'nagai jikan' (long time).

町全体にわたって、電気が消えました。

The electricity went out across the whole town.

Shows space (the whole town).

数キロにわたって、道が続いています。

The road continues for several kilometers.

Shows distance.

一生にわたって、勉強します。

I will study throughout my whole life.

Shows a lifelong span.

日本全国にわたって、有名な店です。

This shop is famous across all of Japan.

Shows a wide geographical range.

２時間にわたって、テストがありました。

There was a test over a period of two hours.

Simple duration.

会議は５時間にわたって行われました。

The meeting was held over five hours.

Focus on the length of the meeting.

そのドラマは１年にわたって放送されました。

That drama was broadcast over a period of one year.

Shows a long broadcast duration.

祭りは３日間にわたって続きます。

The festival continues over three days.

Describes the duration of an event.

広い範囲にわたって、雪が降るでしょう。

It will likely snow over a wide area.

Common weather report phrasing.

研究は数ヶ月にわたって続けられた。

The research was continued over several months.

Academic context for A2.

彼は多方面にわたって活躍している。

He is active across many fields.

Abstract range (fields of activity).

工事は１キロにわたって行われています。

Construction is being carried out over one kilometer.

Physical span of work.

そのニュースは数日間にわたって報じられた。

That news was reported over several days.

Media duration.

この計画は、長期にわたって準備されてきた。

This plan has been prepared over a long period.

Formal N3 level usage.

九州から東北にわたって、梅雨入りした。

The rainy season began from Kyushu all the way to Tohoku.

Geographical range.

２０年にわたる彼の努力がついに実った。

His efforts spanning 20 years finally bore fruit.

Using 'ni wataru' as an adjective.

議論は数時間にわたったが、結論は出なかった。

The discussion lasted several hours, but no conclusion was reached.

Ending with 'ni watatta' (past tense).

この本は、日本の歴史を全巻にわたって解説している。

This book explains Japanese history throughout all its volumes.

Range within a series of books.

被害は広い地域にわたって広がっています。

The damage is spreading across a wide region.

Formal reporting style.

多岐にわたる問題について話し合った。

We discussed problems spanning many areas.

Abstract 'multi-faceted' range.

彼は生涯にわたって、平和を訴え続けた。

He continued to call for peace throughout his life.

Lifelong commitment.

本大会は、１週間にわたって熱戦が繰り広げられる。

In this tournament, intense battles will unfold over a week.

Sports journalism style.

不況の影響は、あらゆる産業にわたって及んでいる。

The impact of the recession is reaching across all industries.

Economic context.

３世代にわたって受け継がれてきた技術だ。

This is a technique that has been passed down over three generations.

Generational span.

調査は、全国１００カ所にわたって実施された。

The survey was conducted across 100 locations nationwide.

Numerical range of locations.

多年にわたる研究成果が認められた。

The results of many years of research were recognized.

Professional recognition.

交渉は細部にわたって行われ、合意に至った。

Negotiations were carried out in detail, and an agreement was reached.

Span of 'details' (abstract).

広範囲にわたる通信障害が発生した。

A wide-ranging communication failure occurred.

Technical incident report.

その作家の作品は、多方面にわたる読者に支持されている。

The author's work is supported by readers across many fields.

Demographic range.

この法案の審議は、数ヶ月の長期にわたって紛糾した。

The deliberations on this bill were deadlocked over a long period of several months.

Political/Legal context.

彼の功績は、医学界のみならず社会全体にわたって高く評価されている。

His achievements are highly valued not only in the medical world but across society as a whole.

C1 level 'not only... but also' structure.

環境破壊のツケは、将来の世代にわたって支払われることになるだろう。

The price of environmental destruction will likely be paid over future generations.

Metaphorical use of 'paying a price'.

その伝統芸能は、千年の長きにわたって守り抜かれてきた。

That traditional art has been protected over a long period of a thousand years.

Emphasis on historical longevity.

今回の不祥事は、組織の全容にわたって徹底的に解明されるべきだ。

This scandal should be thoroughly clarified across the entire scope of the organization.

Demanding a full-scale investigation.

この事象は、多岐にわたる要因が複雑に絡み合って生じている。

This phenomenon is occurring due to a complex intertwining of factors spanning many areas.

Scientific/Analytical complexity.

広範にわたる知識と経験が、この難局を乗り越える鍵となる。

Extensive knowledge and experience will be the key to overcoming this crisis.

Abstract range of expertise.

議論は多方面にわたり、深夜まで及んだ。

The discussion covered many fields and lasted until late at night.

Using the 'ni watari' continuative form.

その哲学者の思想は、世紀をわたって現代の知性に多大な影響を及ぼしている。

The philosopher's thoughts have exerted a profound influence on modern intellect across centuries.

Intellectual history context.

本研究は、言語学から脳科学にわたる学際的なアプローチを採用している。

This research adopts an interdisciplinary approach ranging from linguistics to brain science.

Interdisciplinary range.

国家の存亡をかけた戦いは、数十年という長きにわたって泥沼化した。

The battle for the nation's survival became a quagmire over several decades.

High-level military/political history.

その建築家は、都市計画の全般にわたって革新的な提言を行った。

The architect made innovative proposals across the entirety of urban planning.

Comprehensive scope of work.

人権問題は、国境をわたって議論されるべき普遍的な課題である。

Human rights issues are universal challenges that should be discussed across national borders.

Global/Universal scope.

文学的価値は、時代や文化の壁をわたって継承されるものである。

Literary value is something inherited across the barriers of eras and cultures.

Abstract barriers.

その捜査は、政財界の広範囲にわたってメスを入れることとなった。

The investigation ended up cutting deep across a wide range of the political and business worlds.

Idiomatic 'mesu o ireru' with 'ni watatte'.

宇宙の起源に関する議論は、物理学の根幹にわたって再考を迫っている。

Discussions on the origin of the universe are forcing a reconsideration across the very foundations of physics.

Fundamental scope.

よく使う組み合わせ

数年間にわたって

多方面にわたって

広い範囲にわたって

長期にわたって

全域にわたって

多岐にわたって

生涯にわたって

数十回にわたって

細部にわたって

数キロにわたって

よく使うフレーズ

広範囲にわたる

— Wide-ranging. Used to describe something that covers a large area or diverse set of things.

広範囲にわたる調査が行われた。

長期間にわたって

— Over a long period of time. Used for long-term projects or trends.

長期間にわたって雨が降らなかった。

多岐にわたる

— Diverse or wide-ranging in topics. Used for complex issues.

彼の趣味は多岐にわたる。

全行程にわたって

— Throughout the entire journey or process.

全行程にわたってガイドが同行した。

数回にわたって

— Over several times/instances.

数回にわたって警告した。

あらゆる分野にわたって

— Across all fields or disciplines.

あらゆる分野にわたって改革が必要だ。

町全体にわたって

— Across the whole town.

町全体にわたって祭りが開催された。

世代にわたって

— Over generations.

世代にわたって伝えられる話。

全巻にわたって

— Throughout all volumes (of a book set).

全巻にわたって挿絵がある。

数十キロにわたって

— Over dozens of kilometers.

数十キロにわたって桜並木が続く。

よく混同される語

〜にわたって vs 〜にかけて

Focuses on the transition from A to B, whereas 'ni watatte' covers the whole area.

〜にわたって vs 〜を通じて

Can mean 'via' or 'throughout', but 'ni watatte' is specifically about the span.

〜にわたって vs 〜の間に

Simple 'during'. 'Ni watatte' is more formal and emphasizes length.

慣用句と表現

"多岐にわたる"

— To be wide-ranging or diverse in nature.

彼の知識は多岐にわたる。

Formal

"細部にわたる"

— To be detailed; covering every small part.

細部にわたる説明を受けた。

Formal

"広範にわたる"

— Extensive or widespread.

広範にわたる支持を集めた。

Formal

"長期にわたる"

— Long-term; spanning a long duration.

長期にわたる戦いになった。

Formal

"全般にわたる"

— Overall; covering the whole general area.

経済全般にわたる影響。

Formal

"生涯にわたる"

— Lifelong; throughout one's life.

生涯にわたる友人だ。

Formal

"全域にわたる"

— Covering the entire area.

関東全域にわたる停電。

Formal

"数回にわたる"

— Repeated several times.

数回にわたる交渉の結果。

Formal

"多年にわたる"

— Spanning many years.

多年にわたる功績。

Formal

"多方面にわたる"

— Multi-faceted; across many directions.

多方面にわたる検討が必要だ。

Formal

間違えやすい

〜にわたって vs 渡る (wataru)

It's the base verb.

Wataru is a physical action (crossing a bridge). Ni watatte is a grammatical particle (spanning time).

橋を渡る (Cross bridge) vs ３年にわたって (Over 3 years).

〜にわたって vs 通る (tooru)

Both involve movement.

Tooru is passing through a point or path. Wataru/Ni watatte is crossing or spanning a range.

道を通る (Pass a road).

〜にわたって vs 及ぶ (oyobu)

Both show range.

Oyobu is used when the scale is surprising or reaches a high level. Ni watatte is more neutral about the span.

被害は１億に及ぶ。

〜にわたって vs 通じて (tsuujite)

Both mean 'throughout'.

Tsuujite often implies a medium or a continuous state (all year round). Ni watatte focuses on the span itself.

一年を通じて (Throughout the year).

〜にわたって vs から (kara)

Both start a range.

Kara is just the start point. Ni watatte covers the whole thing.

月曜日から (From Monday).

文型パターン

[Time] にわたって [Verb]

１週間にわたって休みました。

[Space] にわたって [Verb]

町全体にわたって電気が消えた。

[Time] にわたる [Noun]

１０年にわたる研究。

[Quantity] にわたって [Verb]

数回にわたって話し合った。

多方面・多岐にわたって

趣味は多方面にわたっている。

[Range] にわたり、[Clause]

祭りは３日間にわたり、盛大に行われた。

全容・全般にわたって

組織の全容にわたって調査する。

[Abstract Span] にわたって

世代にわたって受け継がれる。

語族

名詞

渡り (watari) - crossing

渡船 (tosen) - ferry

動詞

渡る (wataru) - to cross

渡す (watasu) - to hand over

形容詞

渡り鳥 (wataridori) - migratory bird

使い方

frequency

High in news and writing; Moderate in speech.

よくある間違い

Using with a specific time point. → Using with a duration.
You can't say 'at 3 o'clock ni watatte.' It must be 'for 3 hours ni watatte.'
Confusing 'ni wataru' and 'ni watatte'. → Use 'ni wataru' before nouns.
If a noun follows, you must use the dictionary form 'wataru'.
Using it in very casual talk. → Use 'zutto' or '...kan'.
It sounds too stiff for a casual lunch with friends.
Missing the 'ni' particle. → Noun + ni + watatte.
The 'ni' is essential to link the noun to the phrase.
Using with people nouns. → Use with time/space nouns.
You can't span a person; you span a time or area.

ヒント

Noun Choice

Always pair it with a noun that has a 'length'. Words like 'range,' 'area,' 'period,' or 'count' work best.

News Watching

Watch Japanese weather reports. They use 'hiroi hani ni watatte' (over a wide area) almost every day.

Professionalism

Use 'ni wataru' in your resume to describe long-term projects or experience. It makes you sound very competent.

Continuity

Remember that this phrase implies the action was continuous or repeated throughout the whole span.

Te-form vs Ru-form

Use 'ni watatte' to describe an action (verb follows). Use 'ni wataru' to describe a thing (noun follows).

Generations

It is the perfect phrase for talking about family traditions or long historical eras.

Don't Overuse

If you use it for everything, you'll sound like a robot. Mix it with 'no aida' for variety.

Physical Span

Don't forget it works for distance too, not just time. '5 kilometres spanning' is common.

Broad Topics

Use 'taki ni wataru' to describe someone with many different hobbies or skills.

The Double T

The 'tte' is important. If you say 'watate', it's not a word. Pause slightly on the 't'.

暗記しよう

記憶術

Think of a BRIDGE. A bridge 'crosses' (wataru) a river. This grammar 'crosses' a span of time or land.

視覚的連想

Imagine a long bridge stretching across a wide valley. The valley represents the time (10 years) or space (10km), and the bridge is the action 'ni watatte' happening across it.

Word Web

Time Space Formal Span Range Entirety News Academic

チャレンジ

Try to say 'I studied for 3 hours' using 'ni watatte' to sound like a news reporter.

語源

Comes from the verb 渡る (wataru), which originally meant to cross a river or a physical boundary. Over time, it developed a metaphorical meaning of 'crossing' through time or space.

元の意味： To cross over a physical obstacle.

Japonic

文化的な背景

No specific sensitivities, but avoid using it for trivial or very short tasks (e.g., 'I blinked over a span of 1 second') as it sounds mocking.

In English, we often just say 'for' or 'over,' but 'ni watatte' is closer to 'throughout' or 'spanning.'

Used in historical documentaries about the Showa era. Common in weather reports during typhoon season. Found in pre-movie announcements about theater rules lasting 'throughout the film'.

実生活で練習する

実際の使用場面

Weather Reports

広い範囲にわたって雨
全域にわたって強風
数日間にわたる猛暑
九州全土にわたって

Business Meetings

３ヶ月にわたるプロジェクト
多方面にわたる検討
全行程にわたって
細部にわたるチェック

Academic Research

長期にわたる実験
数世代にわたる調査
多岐にわたる要因
全巻にわたって記述

History/Biography

生涯にわたって
江戸時代にわたって
数世紀にわたる歴史
全生涯にわたる功績

News/Incidents

数キロにわたる渋滞
広範囲にわたる停電
数回にわたる警告
組織全体にわたる問題

会話のきっかけ

"このプロジェクトは、どのくらいの期間にわたって行われる予定ですか？"

"あなたの研究は、どのような分野にわたっていますか？"

"あのドラマ、１年にわたって放送されていたよね？"

"この渋滞、何キロにわたって続いてるんだろう？"

"彼は多方面にわたって才能があると思いませんか？"

日記のテーマ

今までの人生で、一番長い期間にわたって続けている趣味は何ですか？

一週間にわたって休みが取れたら、何をしたいですか？

自分のスキルを、どのような分野にわたって広げていきたいですか？

最近、数日間にわたって考え続けている悩みはありますか？

歴史の中で、数千年にわたって残すべきだと思う文化は何ですか？

よくある質問

10 問

Grammatically yes, but it sounds very formal and dramatic. It's better for longer spans like hours, days, or years. Using it for 5 minutes makes it sound like a very significant 5 minutes.

'Ni watari' is the masu-stem form used in formal writing to connect two sentences. It's like using a comma in English to keep the flow. 'Ni watatte' is the standard te-form used more often in speech and general writing.

No, it must be used with a noun that represents a span of time, space, or a numerical range. You can't say 'Tanaka-san ni watatte'.

It is primarily considered an N3 grammar point, but it is frequently used in N2 and N1 materials as well.

Change 'watatte' to 'wataru' and put it before the noun. For example: '20-nen ni wataru kenkyuu' (20-year-long research).

Only if you mean 'across the whole of Tokyo.' Usually, you would say 'Tokyo zento ni watatte' (across the entire Tokyo prefecture) to be clear about the span.

Similar, but 'kara made' focuses on the start and end. 'Ni watatte' focuses on the fact that the *entire* duration was filled with the action.

Not really. You would just use a different structure if you want to say something didn't happen over a span.

Yes, with counters like 'suu-kai' (several times). 'Suu-kai ni watatte chuukoku shita' (Warned several times).

Rarely. It sounds a bit like you're reading a news script. Stick to 'zutto' or '...kan' with friends.

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