B1 · 中級 チャプター 36

「もし〜だったら…」過去を振り返り、後悔や願いを伝えよう

2 トータルルール
10 例文
1 分
このチャプターのルール クイック練習

Chapter in 30 Seconds

Master the art of reflecting on the past to express hypothetical outcomes and personal regrets.

  • Construct sentences about past events that didn't happen.
  • Express deep regrets using specific linguistic structures.
  • Connect past actions to their missed consequences fluently.
Rewrite your past through the power of language.

学べること

こんにちは！このチャプターでは、英語の表現力をぐっと深める「仮定法」の世界に挑戦します。現実とは違う過去のシナリオを想像する「If + 過去完了、would have + 過去分詞」の形をマスターしましょう。例えば「もし傘を持っていたら、濡れずに済んだのに！」といった、日常の惜しい瞬間や後悔を豊かに表現できるようになります。さらに、wish や if only を使って「〜だったらよかったのに」と今の気持ちを伝えるスキルも身につけます。この章を終える頃には、単なる事実の報告だけでなく、自分の感情や「もしもの話」を織り交ぜた、より人間味のある深いコミュニケーションができるようになりますよ。さあ、表現の幅を広げて、もっと自分らしい英語を目指しましょう！

Learning Objectives

By the end of this chapter, you will be able to:

  1. 1
    By the end you will be able to: describe how a different past action would have changed your present situation.
  2. 2
    By the end you will be able to: articulate personal regrets using 'wish' and 'if only' structures.

ヒントとコツ (2)

💡

The 'Had' Rule

Always check for 'had' in the 'if' clause. If you don't see it, it's not a Third Conditional.
frontend.learn_grammar.from_rule: Third Conditional: Imagining a Different Past
💡

The 'Were' Rule

In formal English, use 'I were' instead of 'I was'. It sounds much more educated.
frontend.learn_grammar.from_rule: Wish and If Only: Regrets and Unreal Situations

重要な語彙 (5)

Hypothetical imaginary or based on a theory Regret a feeling of sadness about something that happened Consequence the result of an action Unreal not existing in reality Opportunity a chance to do something

Real-World Preview

train

The Missed Train

Review Summary

  • If + past perfect, would have + past participle
  • Wish/If only + past perfect

よくある間違い

Never use 'would' in the 'if' clause of a conditional.

Wrong: If I would have known, I would have come.
正解: If I had known, I would have come.

For past regrets, use the past perfect (hadn't gone), not the simple past.

Wrong: I wish I didn't go there.
正解: I wish I hadn't gone there.

Like 'wish', 'if only' requires the past perfect for past situations.

Wrong: If only I have studied.
正解: If only I had studied.

Next Steps

You have mastered a very advanced part of English grammar today. Keep practicing, and your ability to express complex thoughts will only grow!

Write a 5-sentence story about a 'what if' scenario.

Continue to: 表現の幅を広げよう！感情と強調を使いこなす形容詞・副詞・付加疑問文

クイック練習 (9)

Fill in the blank.

I wish I ___ (have) a car.

✓ Correct! ✗ Not quite. Correct answer: had
Present wish uses past simple.

frontend.learn_grammar.from_rule: Wish and If Only: Regrets and Unreal Situations

Find the error.

Find and fix the mistake:

I wish I would win the lottery.

✓ Correct! ✗ Not quite. Correct answer: I wish I could win
Don't use would for self.

frontend.learn_grammar.from_rule: Wish and If Only: Regrets and Unreal Situations

Identify the mistake.

Find and fix the mistake:

If he had been more careful, he would not break the vase.

✓ Correct! ✗ Not quite. Correct answer: would not have broken
Past participle required.

frontend.learn_grammar.from_rule: Third Conditional: Imagining a Different Past

Fill in the blank.

If I ___ (study), I would have passed.

✓ Correct! ✗ Not quite. Correct answer: had studied
Past perfect is required.

frontend.learn_grammar.from_rule: Third Conditional: Imagining a Different Past

Choose the correct sentence.

Which is correct?

✓ Correct! ✗ Not quite. Correct answer: If I had known, I would have come.
Correct structure.

frontend.learn_grammar.from_rule: Third Conditional: Imagining a Different Past

Fix the error.

Find and fix the mistake:

If I had of known, I would have gone.

✓ Correct! ✗ Not quite. Correct answer: If I had known...
Remove 'of'.

frontend.learn_grammar.from_rule: Third Conditional: Imagining a Different Past

Choose the correct form.

I wish I ___ (be) there.

✓ Correct! ✗ Not quite. Correct answer: were
Subjunctive mood.

frontend.learn_grammar.from_rule: Wish and If Only: Regrets and Unreal Situations

Complete the sentence.

If they hadn't arrived, we ___ (not start).

✓ Correct! ✗ Not quite. Correct answer: wouldn't have started
Result clause.

frontend.learn_grammar.from_rule: Third Conditional: Imagining a Different Past

Select the right modal.

If I had tried, I ___ have succeeded.

✓ Correct! ✗ Not quite. Correct answer: might
Might expresses possibility.

frontend.learn_grammar.from_rule: Third Conditional: Imagining a Different Past

Score: /9

よくある質問 (4)

Yes! 'Could have' means it was possible, while 'would have' means it was the result.
No, it can be about relief or analysis.
In informal speech, yes. In formal writing, 'were' is preferred.
It's a way to show the situation is unreal or hypothetical.
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