英語の受動態完全ガイド：全時制を48例文で学ぶ
受動態は英語の中で最も重要な文法構造のひとつです。「誰が行動するか」から「何が起きるか」へと焦点を移す表現で、学術論文・ニュース・フォーマルな会話・日常英語に欠かせません。このガイドでは、すべての受動態の時制と特殊構文を実例とともに解説します。以下から検索またはカテゴリで絞り込んでください。
48 items · 6 topics
"The letter is written"
Present Simple Passive — someone writes the letter habitually
"The report is written by the team every Friday."
"The cake was baked"
Past Simple Passive — someone baked the cake at a specific time
"The cake was baked by my grandmother last night."
"The contract will be signed"
Future Simple Passive — someone will sign the contract
"The contract will be signed by both parties tomorrow."
"Mistakes are made"
Present Simple Passive — people make mistakes in general
"Mistakes are made by everyone when learning something new."
"The road was repaired"
Past Simple Passive — workers repaired the road
"The road was repaired after the heavy floods last spring."
"The package will be delivered"
Future Simple Passive — a courier will deliver the package
"The package will be delivered to your door by noon."
"Coffee is grown in Brazil"
Present Simple Passive — farmers grow coffee there as a fact
"Coffee is grown in Brazil and exported worldwide every year."
"The bridge was built in 1890"
Past Simple Passive — workers built it at that time
"The bridge was built in 1890 and still stands today."
"The house is being painted"
Present Continuous Passive — painters are painting it right now
"The house is being painted by a professional crew this week."
"The film was being shot"
Past Continuous Passive — the crew was shooting it at that moment
"The film was being shot when the storm interrupted production."
"The data is being analysed"
Present Continuous Passive — analysts are working on it now
"The data is being analysed by the research team as we speak."
"The road was being repaired"
Past Continuous Passive — workers were repairing it at the time
"The road was being repaired when we tried to drive through."
"A new policy is being discussed"
Present Continuous Passive — people are discussing it currently
"A new policy is being discussed by the board this afternoon."
"The suspects were being questioned"
Past Continuous Passive — police were questioning them
"The suspects were being questioned when the lawyer arrived."
"The app is being updated"
Present Continuous Passive — developers are updating it now
"The app is being updated — please try again in a few minutes."
"The proposal was being reviewed"
Past Continuous Passive — someone was reviewing it at that point
"The proposal was being reviewed by senior management all morning."
"The invoice has been sent"
Present Perfect Passive — someone sent it; the result matters now
"The invoice has been sent to the client already."
"The decision had been made"
Past Perfect Passive — someone made it before another past event
"The decision had been made before we arrived at the meeting."
"The report will have been submitted"
Future Perfect Passive — it will be done before a future deadline
"The report will have been submitted by the time you read this."
"Three suspects have been arrested"
Present Perfect Passive — police arrested them recently
"Three suspects have been arrested in connection with the robbery."
"The rules had been explained"
Past Perfect Passive — someone explained them before the event
"The rules had been explained clearly before the game began."
"The funds have been transferred"
Present Perfect Passive — the transfer is complete as of now
"The funds have been transferred to your account successfully."
"The building has been demolished"
Present Perfect Passive — workers demolished it; it is gone now
"The old factory has been demolished to make way for a park."
"The winners had been announced"
Past Perfect Passive — announced before another past moment
"The winners had been announced before we reached the venue."
"This must be done immediately"
Modal passive expressing strong obligation
"This must be done immediately or we will miss the deadline."
"The problem can be solved"
Modal passive expressing possibility or ability
"The problem can be solved if we work together effectively."
"Mistakes should be avoided"
Modal passive expressing advice or recommendation
"Mistakes should be avoided by double-checking your work."
"The door might be locked"
Modal passive expressing uncertainty about state
"The door might be locked — try the side entrance instead."
"Tickets could be purchased online"
Modal passive expressing option or past possibility
"Tickets could be purchased online before the event sold out."
"The form must be completed in full"
Modal passive showing a firm requirement
"The form must be completed in full before it can be processed."
"Better results may be achieved"
Modal passive expressing possibility of improvement
"Better results may be achieved with regular daily practice."
"The meeting could have been cancelled"
Modal perfect passive — it was possible but did not happen
"The meeting could have been cancelled if we had known earlier."
"It is said that…"
Impersonal passive reporting general belief or opinion
"It is said that learning a language before age ten is much easier."
"It is believed that…"
Impersonal passive expressing a widely held belief
"It is believed that regular exercise improves mental health."
"It is reported that…"
Impersonal passive used in news and formal writing
"It is reported that the company will announce layoffs next week."
"He is known to be honest"
Personal impersonal passive — the subject shifts to the person
"She is known to be one of the best surgeons in the country."
"They are thought to have left"
Personal impersonal passive with perfect infinitive
"They are thought to have left the country before the arrest."
"It is expected that prices will rise"
Impersonal passive expressing a forecast or expectation
"It is expected that prices will rise sharply in the coming months."
"It has been confirmed that…"
Impersonal passive with present perfect — recently verified fact
"It has been confirmed that the vaccine is safe and effective."
"He is alleged to have stolen the funds"
Impersonal passive used for unproven claims (legal/news)
"The executive is alleged to have stolen the funds over three years."
"Get done / get finished"
"Get passive" — informal alternative to "be passive"
"The dishes never get done unless I do them myself."
"Have it repaired"
"Have something done" causative — you arrange for someone else to do it
"I had my car repaired at the garage on the corner."
"Get caught"
"Get passive" expressing an unexpected or unfortunate event
"He always gets caught when he tries to cheat on the exam."
"She was born in Tokyo"
Passive of "bear": "born" for birth events
"She was born in Tokyo but grew up in London."
"Have your photo taken"
Causative passive — arrange for a photographer to take your photo
"We had our photo taken at the top of the Eiffel Tower."
"It needs fixing"
Passive gerund after "need" to express a required action
"The leak needs fixing before the walls get any worse."
"Being told what to do"
Passive gerund — used after prepositions and as a subject
"She hates being told what to do by people who know less than she does."
"To be continued"
Passive infinitive used idiomatically to signal a continuation
"The story is far from over — to be continued in the next episode."
よくある質問
英語の受動態とは何ですか？
受動態とは、動作の目的語が文の主語になる文法構造です。「to be＋過去分詞」で作られます（例：「The letter was written」）。動作の主体（誰がするか）は省略するか、「by」を使って示します。行動よりも動作の結果や対象が重要な場合に使われます。
各時制での受動態の作り方は？
パターンは常に「主語＋beの適切な形＋過去分詞」です。現在単純：「is/are＋pp」（The cake is baked）。過去単純：「was/were＋pp」（The cake was baked）。現在完了：「has/have been＋pp」（The cake has been baked）。未来：「will be＋pp」（The cake will be baked）。進行形では「be」に「-ing」を加えます：「is being baked」「was being baked」。
受動態はいつ使うべきですか？
次の場合に受動態を使います：(1) 誰が行動したか不明な場合（「The window was broken」）；(2) 主体が重要でない・明らかな場合（「Mistakes are made」）；(3) 公式または非人称的な文体が必要な場合（学術・科学的な文章）；(4) 行為者よりも結果に焦点を当てたい場合。受動態を多用すると文章が非人格的になるので、能動態とバランスよく使いましょう。
「was done」と「has been done」の違いは？
「was done」（過去単純受動態）は過去の特定の時点に完了した動作を指します：「The report was written yesterday.」「has been done」（現在完了受動態）は、いつとは指定せず今に関連する結果に焦点を当てます：「The report has been written.」過去単純は時間表現（yesterday、last week、in 2020）と使い、現在完了は時間が示されていないか重要でない場合に使います。
「get passive（getを使う受動態）」とは何ですか？
「get passive」は「be＋過去分詞」の代わりに「get＋過去分詞」を使います。よりインフォーマルで、話し言葉の英語に多く見られます。予期しないこと・不運なこと・徐々に起きることを示すことが多いです：「She got promoted」（うれしい驚き）、「He got fired」（残念なこと）、「The work got done eventually」（徐々に）。フォーマルな文章ではget passiveを避け、「be」を使いましょう。
受動態の構文は映画・ポッドキャスト・ニュースに常に登場します。リスニングは文法ドリルよりも速く直感を育てます。
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