Grammar Rule in 30 Seconds
Drop repeated words in sentences joined by 'and', 'but', or 'or' to sound more natural and sophisticated.
- Omit shared subjects: 'He came and [he] saw.'
- Omit shared verbs (Gapping): 'I ate steak; he, fish.'
- Keep auxiliaries for clarity: 'I haven't gone, but he has.'
Overview
Ellipsis（省略）とは、単に「言葉を省く」というおしゃれな言い方です。and、but、orなどの言葉で2つの文をつなぐとき、すでに言った言葉を飛ばすことがよくあります。これは、2回目に「削除」ボタンを押すメンタルなコピー＆ペーストのようなものです。相手があなたの言いたいことをすでに分かっているのに、なぜ同じことを2回言う必要があるのでしょうか？それは怠慢ではなく、効率的なのです。文章版のNetflix「イントロをスキップ」ボタンだと思ってください。退屈な繰り返しを避けて、すぐに本題に入ることができます。このガイドでは、TikTokのキャプションを書くときでも、Zoomの面接を乗り切るときでも、プロのように聞こえるようにこの魔法のトリックをマスターする方法を見ていきましょう。ただ、間違った言葉を飛ばさないように注意してください。そうしないと、壊れたロボットのように聞こえてしまうかもしれません！How This Grammar Works
andのような接続詞で結ばれた2つの節（小さな文）があるとき、「双子」を探します。両方の部分で主語が同じであれば、通常、2番目の主語を捨てることができます。例えば：She likes pizza and she likes pasta.（彼女はピザが好きで、彼女はパスタが好きです）。2番目の
she likes が見えますか？それは冗長です。場所を取っています。退屈です。ellipsisを使うと、She likes pizza and pasta.になります。これは主語、動詞、さらには目的語にも機能します。週末の旅行のためにスーツケースをパッキングするようなものです。1つで十分ならヘアブラシを2つ持つ必要はありません。英語を話す人はこれを自然に行います。なぜなら、会話のリズムが保たれるからです。毎回完全な長いバージョンを使っていると、1950年代の教科書のように聞こえてしまいます。2026年に生きているように聞こえてほしいのです！毎回新しい橋を架けることなく、アイデアの間のギャップを埋めるためにこれを使います。これは、聞き手の脳が空白を埋めることに依存しています。これは実際、非常にスマートな言語システムの証です。あなたの脳は基本的にオートコンプリート・マシンなのです！
Formation Pattern
I can sing + and + I can dance。
I と can です。
I can を残します。
and の後の I can を捨てます。
I can sing and dance.
When To Use It
- テキストメッセージとSNS: ここは省略の本拠地です。「ジムにいて、最高！」は「私はジムにいて、私は最高の気分です」よりもずっと良いです。Instagramのキャプションやグループチャットに最適です。
- カジュアルな会話: カフェで友達と話したり、オンラインゲームをしたりするときは、速さが命です。
- 現代の仕事: SlackやZoomのチェックインでも、簡潔さが王様です。
Common Mistakes
- 謎の主語: *別人*の場合は主語を削除しないでください。
- 時制の不一致: タイミングが変わる場合は、動詞を残してください。
- 曖昧さの過負荷: 聞き手に推測させすぎないでください。
Contrast With Similar Patterns
- 省略 vs 短縮形:
I'mのような短縮形は言葉を押しつぶします。省略は完全に削除します。 - 省略 vs 代名詞: 時々
itで置き換えますが、省略は単に消えるだけです。
Quick FAQ
フォーマルな文章でも大丈夫ですか？
はい、でもバランスを考えてください。
but と一緒に使えますか？
もちろんです！「彼は小さいけれど、[彼は]強いです」。
Types of Coordinate Ellipsis
| Type | What is Omitted | Example (Full) | Example (Elliptical) |
|---|---|---|---|
|
Subject Ellipsis
|
The Subject
|
I went and I saw.
|
I went and saw.
|
|
Gapping
|
The Verb
|
I like tea and he likes coffee.
|
I like tea and he, coffee.
|
|
Auxiliary Ellipsis
|
The Helping Verb
|
He can sing and he can dance.
|
He can sing and dance.
|
|
VP Ellipsis
|
The Verb Phrase
|
I haven't gone but he has gone.
|
I haven't gone but he has.
|
|
Stripping
|
Everything but one part
|
He likes cake and he likes pie too.
|
He likes cake, and pie too.
|
Meanings
The omission of words from a sentence that are unnecessary because they have already been mentioned in a previous coordinated clause.
Subject Ellipsis
Removing the subject in the second clause when it is the same as the first.
“He opened the door and walked in.”
“They can stay here or go home.”
Gapping
Removing the verb in the second clause, often replaced by a comma in formal writing.
“My sister lives in London; my brother, in Paris.”
“The first team wore blue; the second, red.”
Verb Phrase Ellipsis
Omitting the main verb but retaining the auxiliary verb.
“I haven't finished yet, but John has.”
“Will you help me? I already am.”
Reference Table
| 省略の種類 | 元の文 | 短縮された文 | 省略できる理由 |
|---|---|---|---|
|
Subject & Aux/Modal Verb
|
She is singing, and she is dancing.
|
She is singing and dancing.
|
主語（She）と助動詞（is）が共通。
|
|
Subject & Main Verb
|
He eats breakfast, and he eats lunch.
|
He eats breakfast and lunch.
|
主語（He）と主要動詞（eats）が共通。
|
|
Subject & Verb Phrase
|
They will study, and they will pass the exam.
|
They will study and pass the exam.
|
主語（They）と助動詞（will）が共通。
|
|
Main Verb
|
I like coffee, and she likes tea.
|
I like coffee, and she tea.
|
主要動詞（likes）のみが暗に示され、明確。
|
|
Full Predicate (Informal)
|
Did you finish the report? Yes, I did.
|
Did you finish the report? Yes, I did.
|
述語「finish the report」全体が完全に暗に示されている。
|
|
Formal Writing
|
The data was analyzed, and the results were presented.
|
The data was analyzed and the results presented.
|
助動詞「was/were」が「presented」のために暗に示されている。
|
フォーマル度スペクトル
I am consuming a sandwich; he, an apple. (lunchtime)
I'm having a sandwich and he's having an apple. (lunchtime)
I'm having a sandwich and he's having one too. (lunchtime)
Sandwich for me, apple for him. (lunchtime)
共起節における省略：核となる概念
省略するもの
- Subject 共通の「He」や「She」
- Auxiliary Verb 共通の「is」、「will」、「have」
- Main Verb 共通の「likes」、「eats」
- Predicate Part 共通の「to do」、「was done」
いつ使うか
- Clarity Maintained 省略後も曖昧さがない
- Conjunctions 「and」、「but」、「or」が典型的
- Natural Flow ぎこちなさや繰り返しを避ける
いつ使わないか
- Subject Change 「I went, but he stayed」
- Verb Form Change 「She has seen, but she will see」
- Ambiguity 「He saw the dog and barked」（誰が吠えた？）
利点
- Conciseness より短く、影響力のある文
- Fluency より滑らかな話し方と書き方
- Naturalness ネイティブスピーカーのように聞こえる
省略：ぎこちない vs 簡潔
共起節で省略を使うかどうかの判断
「and」、「but」、「or」で連結された2つの節がありますか？
両方の節で主語は同じですか？
主要動詞または助動詞は同じですか、または明確に暗に示されていますか？
繰り返される要素を省略することで、曖昧さや混乱が生じますか？
省略の実践：現代の文脈
テキスト/チャット
- • Ran late, will be there soon.
- • Got it, thanks!
- • Heading out, be there in 5.
ソーシャルメディア
- • Coffee run and then work!
- • New post up, go check it out!
- • Loving this weather, and this view!
ビジネス（メール/会議）
- • Reviewed the report and approved the changes.
- • Will analyze the data and present findings.
- • Prepared for the meeting and confident in outcome.
会話
- • I'll have a coffee and a croissant.
- • He spoke quickly and clearly.
- • She went home and relaxed.
レベル別の例文
I like apples and oranges.
She is tall and thin.
He can sing and dance.
Do you want tea or coffee?
He went home and slept.
I am tired but happy.
They didn't see the car or the bus.
She can speak English but not French.
I've finished my homework, but Sarah hasn't.
He said he would help, and he did.
You should call him or I will.
She was working in the garden and singing.
We can and must improve our results.
He enjoys hiking, and his wife does too.
I didn't expect to win, but I have.
The report was long, but the presentation short.
The first chapter covers theory; the second, practice.
Some prefer the city; others, the countryside.
He has never been, and likely never will be, a leader.
She was awarded a gold medal, and her brother a silver.
The CEO resigned, and the CFO likewise.
To some, he was a hero; to others, a villain.
I haven't yet spoken to him, nor do I intend to.
The data suggests one thing; the anecdotal evidence, quite another.
間違えやすい
Learners often don't know whether to leave a gap or use 'one'.
Learners use informal situational drops in formal writing.
よくある間違い
I like tea and I like coffee.
I like tea and coffee.
He is tall and he is nice.
He is tall and nice.
Do you want milk or do you want sugar?
Do you want milk or sugar?
She can sing and she can dance.
She can sing and dance.
I went to the park and I saw a dog.
I went to the park and saw a dog.
They didn't call and they didn't write.
They didn't call or write.
He is a doctor and she is a doctor.
They are both doctors.
I have seen the film but he hasn't seen.
I have seen the film but he hasn't.
She likes swimming and to run.
She likes swimming and running.
He said he would come but he didn't come.
He said he would come but he didn't.
He has never and will never smoke.
He has never smoked and will never smoke.
The first group was successful, the second failed.
The first group was successful; the second, a failure.
I like her more than you.
I like her more than you do.
We have and are still developing the software.
We have developed and are still developing the software.
文型パターン
I have ___ and always will ___.
The first ___ was ___; the second, ___.
She doesn't ___ but her sister ___.
Real World Usage
At the gym. Coming?
The results were significant; the implications, profound.
Wash the vegetables and [then] [wash] the fruit.
Police arrive, [police] arrest suspect.
I have managed teams and [I have] delivered projects on time.
I'll have the burger and [I'll have] a coke.
冗長な部分を見つける
明確さを過信しない
ネイティブに耳を傾ける
Mimicking these patterns will fast-track your fluency and natural expression.
文脈が重要
More informal settings (texting, casual chats) allow for more aggressive shortening, while formal writing demands greater precision and sometimes less omission.
Smart Tips
Check if the main verb form is the same for both. If one needs '-ing' and the other needs '-ed', you cannot elide.
Drop the subject after the first 'and' to sound more like a native speaker.
Use gapping with a semicolon to show off your advanced punctuation skills.
Use VP ellipsis (just the auxiliary) instead of repeating the whole verb.
発音
The Ellipsis Pause
In gapping, a slight pause often occurs where the verb was omitted.
Auxiliary Stress
In VP ellipsis, the auxiliary verb is often stressed.
Rising-Falling in Gapping
I like TEA (rise); he, COFFEE (fall).
Conveys contrast between two items.
暗記しよう
記憶術
If the word is the same, don't say the name.
視覚的連想
Imagine a sentence as a train. If two cars are carrying the exact same cargo, you can unhook the second car and just let the first one do the work.
Rhyme
When 'and' or 'but' connect the two, the second subject is not for you.
Story
A minimalist architect named Eli (Ellipsis) builds houses. Instead of building two identical kitchens in a duplex, he builds one big shared kitchen in the middle to save space and make the design look cleaner.
Word Web
チャレンジ
Look at the last three emails you sent. Find one sentence where you repeated a subject or verb and rewrite it using ellipsis.
文化メモ
British speakers often use 'do' after a modal verb in ellipsis, whereas Americans do not.
Gapping is highly prized in academic writing as it demonstrates 'syntactic density' and sophistication.
Ellipsis is taken to the extreme in texting, often removing all function words.
From the Greek 'elleipsis', meaning 'a falling short' or 'omission'.
会話のきっかけ
Some people love working from home; others, the office. Which are you?
I've never been to Asia, but my brother has. How about you?
Do you prefer tea or coffee in the morning?
I can't stand loud music, but my neighbors can. Do you have noisy neighbors?
日記のテーマ
よくある間違い
Test Yourself
Choose the correct sentence:
Find and fix the mistake:
I went to the store, and he bought some milk.
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
Score: /3
練習問題
8 exercisesFind and fix the mistake:
He has never and will never tell a lie.
Choose the most formal and correct version.
I haven't seen the movie yet, but my sister ___.
She bought a book and she bought a pen.
1. I can go and I will go. 2. I like tea and he likes tea. 3. He is tall and he is thin.
Which sentence could have two meanings?
He loves to travel, and ___.
Find and fix the mistake:
The first car was red, the second blue.
Score: /8
Practice Bank
11 exercisesShe enjoys painting and ___ music.
Which sentence is correct?
Match the subject-verb pairs with their correct shortened forms when combined with 'and'.
The book was interesting, but I didn't finish.
Translate into English: 'She bought coffee, and she drank it quickly.'
We plan to visit Rome and ___ the Vatican.
Arrange these words into a sentence:
I am working on my project, and my friend playing games.
Which sentence is correctly shortened?
He ordered a pizza, and she ___ pasta.
Translate into English: 'You can either come with us, or you can stay here.'
Score: /11
よくある質問 (8)
Generally, no. Coordinate ellipsis is for 'and', 'but', and 'or'. Subordinate clauses (because, although) require different types of reduction, like participle clauses.
In informal writing, no. In formal writing, it is highly recommended to help the reader parse the sentence.
Ellipsis is a grammatical omission where the missing words are 'recoverable' from the context. A fragment is just an incomplete sentence that often lacks a clear referent.
Yes! 'I washed [the car] and waxed the car' becomes 'I washed and waxed the car.'
Because 'has' requires 'gone' (past participle) and 'will' requires 'go' (base form). You can't elide words that aren't identical.
It is the standard. Repeating every word makes you sound like a robot or a very early-stage learner.
Yes, especially subject ellipsis ('I managed the team and increased sales'). It sounds confident and concise.
It's a type of ellipsis where everything is gone except for one constituent, usually with 'too' or 'as well'. Example: 'I'll have coffee, and a donut too.'
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Elipsis
Spanish is a 'pro-drop' language; English is not.
Koordinationsellipse
Word order constraints in German are stricter.
Zero Anaphora
Japanese ellipsis is context-driven, not just coordination-driven.
L'ellipse
French often repeats prepositions (à, de) where English would elide them.
Al-hadhf (الحذف)
Ellipsis in Arabic is often used for poetic emphasis.
Sheng lue (省略)
Chinese elides based on the 'topic', not just the 'subject'.
Learning Path
Prerequisites
関連動画
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