B1 Verb Moods 12 min read ふつう

If I Were vs. If I Was (仮定法過去)

「if I were」をマスターして、「非現実的」な状況や「仮説」を完璧に表現しましょう！
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Grammar Rule in 30 Seconds

Use 'were' instead of 'was' after 'if' to show a situation is imaginary, impossible, or just a dream.

  • Use 'were' for all subjects (I, you, he, she, it, we, they) in hypothetical 'if' clauses. Example: 'If I were rich...'
  • Use 'would' in the second part of the sentence to show the result. Example: '...I would travel.'
  • In casual speech, 'was' is common, but 'were' is the gold standard for exams and formal writing.
If + Subject + WERE ☁️, Subject + WOULD + Verb 🚀

Overview

### Overview
英語の文法を学んでいると、時々「なぜここで過去形を使うのだろう？」と不思議に思う瞬間に遭遇します。その代表格が、今回のテーマである Second Conditional（仮定法過去）です。特に If I were という表現は、主語が I なのに am でも was でもなく were を使うという、日本人学習者にとって非常に奇妙に感じられるルールを含んでいます。
なぜこの形をマスターする必要があるのでしょうか。それは、この文法が「現実とは異なる想像の世界」や「控えめな提案」を表現するための、英語における非常に重要な「心の距離感」を司っているからです。私たちは日常生活の中で、「もし宝くじが当たったら…」「もし私があなただったら…」「もし時間がもっとあれば…」といった話をよくしますよね。これらはすべて「現在の事実とは違うこと」を仮定しています。英語では、この「現実とのギャップ」を、動詞を過去形に「ジャンプ」させることで表現します。
本稿では、中級レベル（B1）の学習者が、自信を持って If I were を使いこなし、ネイティブスピーカーのような自然なニュアンスで話せるようになるためのポイントを徹底的に解説します。単なる暗記ではなく、「なぜそうなるのか」という英語特有のロジックを、日本語の感覚と比較しながら紐解いていきましょう。
### How This Grammar Works
この文法の核心にあるのは、Subjunctive Mood（仮定法） という考え方です。英語には、事実を述べる「直説法」と、頭の中の想像や願望を述べる「仮定法」という2つの大きなモードがあります。
#### 1. 「距離」の概念で理解する
英語の「過去形」には、単に「昔のこと」を表すだけでなく、「現在からの距離」を表す機能があります。これを「遠隔性（Distancing）」と呼びます。
  • 時間の距離: 今から離れた「過去」のこと（例: I was happy.）
  • 現実の距離: 現実から離れた「想像・仮定」のこと（例: If I were happy...）
日本語では「もし～だったら」と、「もし（If）」という言葉や助詞の「～たら・～れば」を使って仮定を表現しますが、英語では「動詞の形そのもの」を変えることで、「これは現実の話ではありませんよ」というサインを相手に送るのです。
#### 2. なぜ was ではなく were なのか？
本来、主語が I, he, she, it の場合、過去形は was です。しかし、仮定法（Second Conditional）では伝統的に、すべての主語に対して were を使います。これは、あえて文法的に「ありえない形」を使うことで、「内容もありえないこと（非現実）である」ことを強調するためです。
  • 事実（直説法）: I am not rich. （私は金持ちではない）
  • 仮定（仮定法）: If I were rich... （もし私が金持ちなら… ※実際は違うけれど）
このように、were を使うことで、聞き手は瞬時に「あ、これは現実の話ではなく、仮定の話が始まるんだな」と理解できるのです。最近の口語では If I was と言うネイティブも増えていますが、ビジネスやフォーマルな場、また試験などでは If I were が依然として標準であり、より洗練された印象を与えます。
### Formation Pattern
Second Conditional は、大きく分けて2つのパート（節）で構成されます。条件を表す If 節と、その結果を予想する Main Clause（主節）です。
#### 基本構造
| 構成要素 | 動詞の形 | 役割 |
| :--- | :--- | :--- |
| If 節 (Condition) | If + 主語 + 過去形 (be動詞は were) | 「もし～なら」という非現実の仮定 |
| 主節 (Result) | 主語 + would / could / might + 動詞の原形 | 「（もしそうなら）～だろうに」という推測 |
#### 具体的な例文パターン
  1. 1be動詞の場合
  • If I were you, I would take the job.
（もし私があなたなら、その仕事を引き受けるでしょう。）
※実際には私はあなたではないので、were を使います。
  1. 1一般動詞の場合
  • If I had more time, I could travel more.
（もしもっと時間があれば、もっと旅行できるのに。）
※実際には時間がないので、have を過去形の had にします。
#### 日本語との語順比較
日本語は「SOV（主語・目的語・述語）」ですが、英語は「SVO（主語・述語・目的語）」です。仮定法でもこの基本は変わりません。
| 言語 | 構造例 |
| :--- | :--- |
| 日本語 | [もし私が] [お金を] [持っていたら]、[車を] [買うだろう]。 |
| 英語 | [If I] [had] [money], [I] [would buy] [a car]. |
ポイントは、主節で必ず would や could などの助動詞を使うことです。日本語では「～だろう」「～できるのに」といったニュアンスに対応します。これがないと、ただの過去の話（「お金を持っていた時、車を買った」）と混同される可能性があるため、非常に重要です。
### When To Use It
この文法を使うべきシチュエーションは、主に以下の4つです。ビジネスや日常生活の具体的な場面をイメージしてみましょう。
#### 1. 現在の事実とは反対のことを想像する（Hypothetical situations）
今の状況に満足していなかったり、別の可能性を夢見たりする時に使います。
  • If I were a billionaire, I would donate half of my wealth.
（もし私が億万長者なら、資産の半分を寄付するだろうに。）
※実際は億万長者ではないという現実が背景にあります。
#### 2. 起こる可能性が極めて低い未来を話す（Unlikely future events）
「万が一～だったら」というニュアンスです。
  • If I won the lottery, I would quit my job.
（もし宝くじに当たったら、仕事を辞めるだろう。）
※当たる確率は非常に低いと考えているため、Second Conditional が適しています。
#### 3. 相手にアドバイスをする（Giving advice）
「もし私があなたの立場だったら」という仮定を通じて、間接的で丁寧な助言ができます。これは日本の「先輩・後輩」関係や、職場での「就活（Job hunting）」の相談などでも非常に役立つ表現です。
  • If I were you, I would prepare more for the interview.
（もし私が君なら、面接の準備をもっとするよ。）
※直接「準備しなさい」と言うよりも角が立たず、英語圏でも非常に好まれる表現です。
#### 4. 願望を表現する（Wishes with 'If only' or 'I wish'）
If I were と同じロジックが I wish の後にも使われます。
  • I wish I were more fluent in English.
（もっと英語が流暢だったらいいのになあ。）
※「実際はそうではない」という残念な気持ちが含まれています。
### Common Mistakes
日本人学習者が特におかしやすいミスを、日本語の干渉（L1 transfer）の観点から解説します。
#### 1. 主節で will を使ってしまう
  • 誤: If I were rich, I will buy a house.
  • 正: If I were rich, I would buy a house.
なぜ間違えるのか？
日本語の「～だろう」を英語に直そうとすると、未来を表す will が頭に浮かびがちです。しかし、If 節で過去形（were/had等）を使って「現実からの距離」を置いた場合、主節でもバランスをとるために will を過去形の would に変える必要があります。これを「時制の一致」のような感覚で捉えてください。
#### 2. 主語の省略（Pro-drop）
  • 誤: If were you, would go.
  • 正: If I were you, I would go.
なぜ間違えるのか？
日本語では「（もし私が）あなたなら、（私は）行くなあ」というように、主語を省略するのが自然です。しかし英語では主語がないと文が成立しません。特に仮定法のような複雑な構造では、誰が仮定し、誰が結果を得るのかを明示する必要があります。
#### 3. 単数主語に was を使ってしまう（テストやフォーマルな場）
  • 注意: If he was here, he would help us.
解説:
これは間違いではありませんが、中級以上の学習者としては使い分けが必要です。日常会話では was も頻繁に使われますが、レポート作成やビジネスメール、または英検やTOEFLなどの試験では、were を使うのが「正解」とされます。日本人学習者は「主語が単数なら was」というルールを完璧に覚えている努力家が多いため、逆に were を使うことに抵抗を感じる傾向がありますが、ここは「仮定法という特別な儀式」だと思って were を使いましょう。
### Contrast With Similar Patterns
特によく混同される First Conditional（直説法仮定）との違いを比較表で見てみましょう。
| 特徴 | First Conditional (現実的) | Second Conditional (非現実的) |
| :--- | :--- | :--- |
| If 節の形 | If + 現在形 | If + 過去形 |
| 主節の形 | will + 原形 | would + 原形 |
| 意味・ニュアンス | 起こる可能性がある（現実的） | 起こる可能性が低い・事実と違う |
| 例文 | If it rains, I will stay home. | If it rained, I would stay home. |
| 状況の解釈 | 明日の天気予報が雨かもしれない。 | 今、外は晴れているが、もし雨なら。 |
#### 比較のポイント：
  • If I have money... と言った場合、あなたは「お金を持っている可能性がある、あるいは手に入る見込みがある」と考えています。
  • If I had money... と言った場合、あなたは「今、お金を持っていない」という現実を強く意識しており、単なる妄想として話しています。
この「ありそう（First）」か「なさそう（Second）」かの使い分けが、英語のコミュニケーションにおける「ニュアンス」の正体です。
### Quick FAQ
Q1: If I were you 以外でも were を使いますか？
A1: はい、主語が he, she, it の時も同様です。例えば、If she were here, she would be happy. （もし彼女がここにいたら、喜ぶだろうに）のように使います。彼女が「今ここにいない」という事実を強調しています。
Q2: would 以外の助動詞は使えますか？
A2: はい、意味に合わせて could（～できるだろうに）や might（～かもしれないのに）を使うことができます。
  • If I had a car, I could drive you home. （車があれば、送っていけるんだけど。＝能力・可能性）
  • If I asked him, he might help me. （彼に頼んだら、助けてくれるかもしれない。＝不確実な推測）
Q3: 丁寧にお願いする時にも使えますか？
A3: 非常に良い質問です！ It would be great if you could... （～していただければ幸いです）という表現は、ビジネスで非常によく使われます。これも Second Conditional の一種で、「もし可能であれば」という控えめな距離感を出すことで、相手にプレッシャーを与えない丁寧な依頼になります。
Q4: 日本語の「～だったら」とどう使い分ければいいですか？
A4: 日本語の「～だったら」は、現実的な話（明日晴れたら）にも、非現実的な話（私が鳥だったら）にも両方使えます。英語ではそれを If I am / will と If I were / would で厳密に分ける必要があります。「これは妄想か、それとも現実的な予定か？」を一度自分に問いかけるのが上達の近道です。
---
最後に：
If I were を使いこなせるようになると、あなたの英語は一気に「大人の表現」へと進化します。現実をそのまま伝えるだけでなく、可能性や夢、そして相手への配慮を表現できるようになるからです。最初は were に違和感があるかもしれませんが、何度も口に出して練習してみてください。If I were you, I would start practicing right now!（もし私があなたなら、今すぐ練習を始めますよ！）頑張りましょう！

Subjunctive 'To Be' (Second Conditional)

Subject Subjunctive Form Example Clause Result Clause
I
were
If I were taller
I would play basketball.
You
were
If you were here
we would have fun.
He / She / It
were
If she were rich
she would travel.
We
were
If we were faster
we would win.
They
were
If they were kind
they would help.

Contractions in the Second Conditional

Full Form Contraction Usage
If I were not
If I weren't
Negative condition
I would
I'd
Positive result
She would
She'd
Positive result
They would not
They wouldn't
Negative result

Meanings

A specific use of the subjunctive mood to express conditions that are contrary to fact or highly unlikely in the present or future.

1

Giving Advice

Putting yourself in someone else's shoes to offer a suggestion.

“If I were you, I would take the job.”

“If I were in your position, I'd call him.”

2

Pure Fantasy

Imagining impossible scenarios or physical changes.

“If I were a bird, I would fly to the moon.”

“If she were taller, she could be a model.”

3

Formal Requests/Hypotheticals

Discussing business or academic possibilities with a high degree of distance.

“If the manager were here, he would explain the policy.”

“If there were any doubt, we would cancel the project.”

Reference Table

Reference table for If I Were vs. If I Was (仮定法過去)
主語 仮定法第二文型（正しい表現） 単純過去形（事実） 使う時
I
If I were...
I was...
仮説／非現実
You
If you were...
You were...
仮説／非現実
He / She / It
If he/she/it were...
He/she/it was...
仮説／非現実
We
If we were...
We were...
仮説／非現実
They
If they were...
They were...
仮説／非現実
The team
If the team were...
The team was...
仮説／非現実

フォーマル度スペクトル

フォーマル
If I were in your position, I would reconsider.

If I were in your position, I would reconsider. (Advice)

ニュートラル
If I were you, I'd think about it again.

If I were you, I'd think about it again. (Advice)

カジュアル
If I was you, I'd think twice.

If I was you, I'd think twice. (Advice)

スラング
Yo, if I was you, I'd bounce.

Yo, if I was you, I'd bounce. (Advice)

「仮定法」：非現実の世界

仮定法

主な使用場面

  • Wishes I wish I were...
  • Hypotheticals If I were...
  • Commands (formal) I demand that he be...

動詞の形（仮定法第二文型）

  • Were (all subjects) If I were, If he were, If they were

主節

  • Would + Base Verb I would travel, She would know

「If I Were」vs.「If I Was」

If I Were...
フォーマル／正しい If I were you, I'd apologize.
仮説 If I were rich, I'd buy a jet.
願い事 I wish I were taller.
If I Was...
インフォーマル／カジュアル If I was wrong, I'm sorry. (often refers to a past fact)
過去の事実（仮定ではない） If I was late, it was because of traffic.
控えめな仮説 If I was rich, I'd buy a jet. (common in speech)

「If」節で「Were」と「Was」、どちらを使うべき？

1

その状況は現実的ですか、それとも事実ですか？

YES
I／he／she／itには「was」（単純過去形）を使いましょう。(例：If I was tired yesterday...)
NO
2

その状況は仮説的、架空、または願いですか？

YES
全ての主語（I／he／she／it／we／you／they）に「were」を使いましょう。(例：If I were a bird...)
NO
ちょっと待って、どういうこと？

仮定法第二文型の状況

🗣️

アドバイス

  • • もし私があなたなら...
  • • もし〜だったらどうする？
✨

夢と願い

  • • もし〜だったらなあ...
  • • 〜だったらいいのに...
  • • 架空のシナリオ
🔮

ありそうもない未来

  • • もし宇宙人が着陸したら...
  • • もし宝くじが当たったら...
  • • 非常にありそうもない出来事
🧩

問題解決

  • • もしもっと時間があったら...
  • • もし予算がもっと大きかったら...
  • • 仮説的な課題
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レベル別の例文

1

If I were a cat, I would sleep.

2

If he were happy, he would smile.

3

If I were you, I would eat.

4

If it were cold, I would wear a coat.

1

If I were rich, I would buy a big house.

2

If she were my sister, I would be happy.

3

What would you do if you were me?

4

If they weren't tired, they would play.

1

If I were you, I would apply for that job immediately.

2

If the weather were better, we could have a picnic.

3

I would travel the world if I were a millionaire.

4

If he were more responsible, he would be the manager.

1

If it weren't for the traffic, I would be there by now.

2

If I were in your shoes, I'd reconsider the offer.

3

What would happen if the sun were to stop shining?

4

If there were any truth to the rumors, we would know.

1

Were I to win the lottery, I would donate half to charity.

2

If he were as smart as he thinks he is, he'd be rich.

3

It's not as if I were asking for the moon.

4

If there were to be a change in plans, please notify me.

1

Were it not for his intervention, the company would have folded.

2

If the world were but a stage, we would all be mere actors.

3

She looked at him as though he were some strange specimen.

4

If there were any justice in the world, this wouldn't happen.

間違えやすい

If I Were vs. If I Was (Second Conditional) 対 First Conditional (If I am...)

Learners use 'If I am' for things that are impossible.

If I Were vs. If I Was (Second Conditional) 対 Past Simple (If I was...)

Learners don't know when 'was' is actually correct.

よくある間違い

✗

If I am you, I go.

✓

If I were you, I would go.

A1 learners often use the present simple for hypotheticals.
✗

If I was a bird, I would fly.

✓

If I were a bird, I would fly.

Using 'was' for impossible scenarios.
✗

If I were rich, I will buy a car.

✓

If I were rich, I would buy a car.

Mixing 'were' (2nd conditional) with 'will' (1st conditional).
✗

If I was to go, I'd tell you.

✓

If I were to go, I'd tell you.

Failing to use the subjunctive in a 'were to' future hypothetical.

文型パターン

If I were ___, I would ___.

If it weren't for ___, I would ___.

Real World Usage

Job Interview common

If you were faced with a difficult client, how would you respond?

Giving Advice to a Friend constant

If I were you, I'd just tell him the truth.

Customer Support occasional

If there were a way to speed up the process, I would certainly do it.

Social Media Captions very common

If I were on a beach right now, I'd be so happy.

Dating/Relationships common

If we were to get married, where would we live?

Scientific Discussion occasional

If the earth were flat, gravity would work differently.

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💡

「非現実」か「願い」で考えよう

現実的ではない状況、今すぐは起こりえないこと、またはあなたが「こうだったらいいのに」と願うことなら、必ず「were」を使いましょう。これは非現実の世界を表す言語の合図です。「If I were a superhero, I would fly.」
⚠️

フォーマルな場では「was」を避けよう

「If I was」はカジュアルな会話で出てくることもありますが、学術論文、ビジネスメール、重要なプレゼンテーションでは避けるのが賢明です。「were」を使うことで、洗練された印象を与えられます。「If I were to present this, I would highlight new data.」
🎯

「Were I to...」でエレガントに

とても上品で少しフォーマルな表現にしたい場合は、「if」節を倒置させることができます。「If I were to...」の代わりに、「Were I to...」と使ってみましょう。あまり一般的ではありませんが、非常に洗練された響きになります。「Were I to accept, I would need more details.」
🌍

地域による違いもあるけれど

一部の英語圏や方言では、「If I was」が半フォーマルな状況でも広く受け入れられていることに注意してください。しかし、「If I were」は文法的に正しく、普遍的に理解され好まれる表現です。「If I were in America, I might hear 'if I was' more often.」
💡

「もし〜だったら？」で練習しよう

ゲーム感覚で練習しましょう！自分自身や友達に「What if I were a cat?（もし私が猫だったら？）」や「What if the sky were green?（もし空が緑だったら？）」と問いかけてみてください。積極的にこれらの文を作れば作るほど、自然に使えるようになります。「What if I were to learn Japanese faster?」

Smart Tips

Always start with 'If I were you'. It sounds much more natural and authoritative than 'If I was you'.

If I was you, I'd take the bus. → If I were you, I'd take the bus.

Use 'were' to discuss hypothetical budgets or timelines to sound professional.

If the deadline was earlier, we couldn't finish. → If the deadline were earlier, we couldn't finish.

Check if there is an 'if' clause. If there is, use 'were' for the verb 'to be'.

If she was here, she would help. → If she were here, she would help.

Try inverting the sentence by starting with 'Were'.

If I were to choose one... → Were I to choose one...

発音

I'd /aɪd/, You'd /juːd/, She'd /ʃiːd/

Contraction of 'would'

In spoken English, 'would' almost always disappears into ''d'.

Hypothetical Rise

If I were rich... (rising) ...I'd buy a boat (falling).

The rising tone on 'rich' signals that the condition is not yet finished.

暗記しよう

記憶術

WERE is for WISHES. Both start with W.

視覚的連想

Imagine a giant 'W' made of fluffy clouds. Clouds are like dreams and imagination. When you imagine something, use the 'W' for 'Were'.

Rhyme

If it's a dream and not a fact, use 'were' to keep the rule intact.

Story

Imagine you are a tiny ant. You look at a human and say, 'If I were that big, I would rule the world!' Because you are NOT big, you use 'were'.

Word Web

IfWereWouldHypotheticalSubjunctiveAdviceImaginary

チャレンジ

Write down 3 things you would do if you were the opposite gender for one day. Use 'If I were...' in every sentence.

文化メモ

In casual US speech, 'If I was' is extremely common and rarely corrected in social settings.

British speakers tend to be slightly more formal with the subjunctive in professional settings, though 'was' is still common in dialects.

In legal documents or academic papers, 'If I was' is considered a serious grammatical error.

The subjunctive mood comes from Old English, where verbs had distinct endings for hypothetical statements.

会話のきっかけ

“

If you were an animal, which one would you be?

“

If you were the president of your country, what is the first law you would change?

“

If you were to win 10 million dollars tomorrow, would you keep your current job?

日記のテーマ

Write about your dream life. If you were famous, where would you live and what would you do?
Imagine you can travel in time. If you were alive in the year 1800, what would your daily life be like?

よくある間違い

Incorrect

正解

Incorrect

正解

Incorrect

正解

Incorrect

正解

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Test Yourself

正しい形を選びましょう

If she ___ taller, she would be a great basketball player.

✓ Correct! ✗ Not quite. Correct answer: were
この状況（彼女が背が高い）は仮定であり、事実ではないため、「were」が使われます。
間違いを見つけて修正しましょう Error Correction

Find and fix the mistake:

If I was you, I would take that job offer.

✓ Correct! ✗ Not quite. Correct answer: If I were you, I would take that job offer.
アドバイスをするような仮定の状況（「If I were you」）では、「was」ではなく「were」が常に正しい形です。
正しい英文を入力しましょう 翻訳

Translate into English: 'Si él fuera mi hermano, lo ayudaría.'

Answer starts with: ["I...

✓ Correct! ✗ Not quite. Correct answer: ["If he were my brother, I would help him.","If he were my brother I would help him."]
スペイン語の「si él fuera」は、非現実的な状況を示す英語の「If he were」に翻訳されます。主節では結果として「would」が使われます。
どちらの文が正しいでしょう？ 選択問題

Choose the correct sentence:

✓ Correct! ✗ Not quite. Correct answer: If it were sunny, we would go to the park.
非現実的な状況（晴れていない）の場合、仮定法第二文型の「if」節では「were」を使います。

Score: /4

練習問題

8 exercises
Choose the correct form for a formal context. 選択問題

If he ___ here, he would know what to do.

✓ Correct! ✗ Not quite. Correct answer: were
In the second conditional, 'were' is used for all subjects.
Fill in the missing word.

If I ___ you, I wouldn't buy that car.

✓ Correct! ✗ Not quite. Correct answer: were
This is a standard advice formula.
Find the mistake in the sentence. Error Correction

Find and fix the mistake:

If I would be rich, I would travel more.

✓ Correct! ✗ Not quite. Correct answer: Change 'would be' to 'were'
You cannot use 'would' in the if-clause.
Rewrite the sentence starting with 'If'. Sentence Transformation

I am not you, so I don't go. -> If...

✓ Correct! ✗ Not quite. Correct answer: If I were you, I wouldn't go.
The transformation requires the subjunctive and the conditional 'would'.
Is this statement true or false? True False Rule

'If I was' is always grammatically incorrect in every situation.

✓ Correct! ✗ Not quite. Correct answer: False
'If I was' is correct when talking about a real possibility in the past.
Complete the dialogue. Dialogue Completion

A: I'm so tired. B: If I ___ you, I'd take a nap.

✓ Correct! ✗ Not quite. Correct answer: were
Advice uses the subjunctive 'were'.
Is this sentence Real or Imaginary? Grammar Sorting

If I were a millionaire, I'd buy a jet.

✓ Correct! ✗ Not quite. Correct answer: Imaginary
The use of 'were' and 'would' signals an imaginary scenario.
Match the if-clause with the result. Match Pairs

1. If I were you... 2. If it were sunny... 3. If she were here...

✓ Correct! ✗ Not quite. Correct answer: 1-I'd go, 2-we'd swim, 3-she'd help
Second conditional requires 'would' in the result.

Score: /8

Practice Bank

12 exercises
正しい形を選びましょう 穴埋め問題

I wish I ___ fluent in Spanish.

✓ Correct! ✗ Not quite. Correct answer: were
間違いを見つけて修正しましょう Error Correction

If she was a cat, she will sleep all day.

✓ Correct! ✗ Not quite. Correct answer: If she were a cat, she would sleep all day.
正しい英文を入力しましょう 翻訳

Translate into English: 'Si yo tuviera más dinero, compraría un coche nuevo.'

✓ Correct! ✗ Not quite. Correct answer: ["If I had more money, I would buy a new car.","If I had more money I would buy a new car."]
単語を並べ替えてください Sentence Reorder

Arrange these words into a sentence:

✓ Correct! ✗ Not quite. Correct answer: If I were a superpower, I'd be invisible.
各仮定の主語を「be」の正しい形と合わせましょう Match Pairs

Match the subjects with the correct form:

✓ Correct! ✗ Not quite. Correct answer: matched
どちらの文が正しいでしょう？ 選択問題

Choose the correct sentence:

✓ Correct! ✗ Not quite. Correct answer: If he were here, we could start the meeting.
正しい形を選びましょう 穴埋め問題

What would you do if you ___ invisible?

✓ Correct! ✗ Not quite. Correct answer: were
間違いを見つけて修正しましょう Error Correction

She would travel the world if she was independently wealthy.

✓ Correct! ✗ Not quite. Correct answer: She would travel the world if she were independently wealthy.
正しい英文を入力しましょう 翻訳

Translate into English: 'Si yo fuera tú, no lo haría.'

✓ Correct! ✗ Not quite. Correct answer: ["If I were you, I wouldn't do it.","If I were you, I would not do it."]
単語を並べ替えてください Sentence Reorder

Arrange these words into a sentence:

✓ Correct! ✗ Not quite. Correct answer: If I were a queen, I would rule the land.
これらの仮定法第二文型の始まりと終わりを合わせましょう Match Pairs

Match the phrases:

✓ Correct! ✗ Not quite. Correct answer: matched
どちらの文が正しいでしょう？ 選択問題

Choose the correct sentence:

✓ Correct! ✗ Not quite. Correct answer: He would call if he were free.

Score: /12

よくある質問 (8)

No. It's common in casual speech. However, in formal writing or exams, 'If I were' is the only accepted form for hypothetical situations.

Because it's not the past tense; it's the 'subjunctive mood'. In this mood, the verb 'to be' becomes 'were' for all people.

Yes! This is a more formal way to say 'If I went'. It makes the event sound even more unlikely.

'If I were' is for the present (imagining now). 'If I had been' is for the past (imagining a different past).

Yes, especially in the phrase `If I were you`. In other cases, many native speakers use `was` casually, but `were` remains the standard for educated speech.

In questions, we usually flip the 'would' part: 'Would you help me if I were in trouble?'

No, only the verb 'to be' has a special subjunctive form ('were'). Other verbs just use their normal past tense form (e.g., 'If I *had* more time...').

Similarly to 'if', 'I wish I were' is the formal/correct version, while 'I wish I was' is common in casual speech.

Scaffolded Practice

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4

Mastery Progress

Needs Practice

Improving

Strong

Mastered

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In Other Languages

Spanish high

Si yo fuera...

Spanish has a much more robust subjunctive system used in many more contexts than English.

French moderate

Si j'étais...

French doesn't have a separate 'subjunctive' form for this specific conditional use; it just uses the past tense.

German high

Wenn ich ... wäre

German can also use a 'würde' (would) construction in the if-clause, which is a big 'no-no' in English.

Japanese low

もし私が...だったら (Moshi watashi ga... dattara)

Japanese relies on particles and suffixes rather than verb mood conjugation.

Arabic moderate

لو كنت (Law kuntu)

Arabic has different particles for 'real' vs 'unreal' conditions, making the distinction very clear.

Chinese none

如果我是...的话 (Rúguǒ wǒ shì... dehuà)

No change to the verb 'shì' (to be) regardless of whether the situation is real or imaginary.

Learning Path

Prerequisites

Previous
仮定法過去（第二条件文）：'if' と 'would' で夢を見る

Learn These First

B1 Builds On

仮定法過去（第二条件文）：'if' と 'would' で夢を見る

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