Clauses and linking B1 B2

Second, third, and mixed conditionals

Talk about imagined present or future situations, unreal past situations, and mixed-time results.

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図解ガイド

Unreal conditionals: two clocks

Unreal conditionals = two clocks

      IF CLOCK                  RESULT CLOCK
      imagined cause            imagined effect
      past-looking form         would = imagined result

now/future unreal ───────────► now/future result
If I had more time, I would travel.

past unreal ─────────────────► past result
If we had left earlier, we would have caught the train.

past unreal ─────────────────► now result
If she had studied medicine, she would be a doctor now.

Mental shortcut:
IF side shows distance from reality.
RESULT side shows when the imagined result is.

Use past-looking forms to mark an imagined condition, then choose would or would have according to when the result happens.

Introduction

Imagined conditions and results

Second, third, and mixed conditionals let you talk about a situation that is not being presented as real. The if-clause gives the imagined condition; the main clause gives the imagined result. Use the second conditional for an unreal or unlikely present or future situation: If I had more time, I would travel. Use the third conditional for an unreal past situation: If we had left earlier, we would have caught the train. Mixed conditionals connect different times, such as a past choice with a present result, or a present quality with a past result.

Core 文法：B1 語彙：A2 Neutral

If I had more time, I would travel.

A second conditional imagines a present or future situation that is not real now.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I had more time

condition

imagined present situation

ひとまとまりで覚える

I would travel

result

imagined result

Core 文法：B1 語彙：A2 Neutral

If we had left earlier, we would have caught the train.

A third conditional imagines a different past.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If we had left earlier

condition

unreal past condition

ひとまとまりで覚える

we would have caught the train

result

imagined past result

Cognitive metaphor

Past form as distance, not always past time

Think of these forms as distance markers. English often uses past-looking forms to move away from reality. In the second conditional, a past form does not mean past time; it means imagined distance from now or the future. If I knew her number, I would call her means I do not know it, so the call is imagined. To move further back into an unreal past, use past perfect in the condition and would have in the result: If I had known her number, I would have called her. The time is carried by the whole pattern, not by one word alone.

Core 文法：B1 語彙：A2 Neutral

If I knew her number, I would call her.

The past form knew shows distance from reality, not past time.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I knew her number

condition

imagined present condition

ひとまとまりで覚える

I would call her

result

imagined present result

Contrast 文法：B1 語彙：A2 Neutral

If I had known her number, I would have called her.

Past perfect moves the condition into an unreal past.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I had known her number

condition

unreal past condition

ひとまとまりで覚える

I would have called her

result

imagined past result

Core pattern

Second, third, and mixed patterns

The main patterns are stable. Second conditional: if + past simple, would/could/might + base verb. If the rent were lower, we would take the flat. Third conditional: if + had + past participle, would/could/might have + past participle. If I had saved the file, I wouldn't have lost my work. Mixed past to present: if + had + past participle, would/could/might + base verb now. If she had studied medicine, she would be a doctor now. Mixed present to past: if + past simple, would/could/might have + past participle. If I weren't so shy, I would have asked a question.

Core 文法：B1 語彙：A2 Neutral

If the rent were lower, we would take the flat.

This is the second conditional with were in a hypothetical condition.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If the rent were lower

condition

imagined present condition

ひとまとまりで覚える

we would take the flat

result

imagined decision

Negative 文法：B1 語彙：A2 Neutral

If I had saved the file, I wouldn't have lost my work.

The third conditional often expresses regret about a past result.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I had saved the file

condition

unreal past action

ひとまとまりで覚える

I wouldn't have lost my work

result

negative imagined past result

Core 文法：B2 語彙：A2 Neutral

If she had studied medicine, she would be a doctor now.

This mixed conditional links an unreal past condition to a present result.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If she had studied medicine

condition

unreal past choice

ひとまとまりで覚える

she would be a doctor now

result

present result of that imagined past

Core 文法：B2 語彙：A2 Neutral

If I weren't so shy, I would have asked a question.

This mixed conditional links an imagined present quality to an unreal past result.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I weren't so shy

condition

imagined present quality

ひとまとまりで覚える

I would have asked a question

result

past result that did not happen

Sentence xray

Two blocks: condition and result

Read each sentence as two blocks. In If I had saved your number, I would call you now, the first block is an unreal past condition; the second block is a present result. The result can come first: Would you move abroad if you got the chance? When the if-clause comes first, a comma usually separates the two clauses. When the result comes first, no comma is usually needed. The condition clause does not make a complete practical message by itself; it sets up the world where the result becomes true.

Core 文法：B2 語彙：A2 Neutral

If I had saved your number, I would call you now.

The word now helps show that the result is present, not past.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I had saved your number

condition

unreal past condition

ひとまとまりで覚える

I would call you now

result

present result

Question 文法：B1 語彙：A2 Neutral

Would you move abroad if you got the chance?

When the result clause comes first, the comma usually disappears.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

Would you move abroad

result_question

question form of the imagined result

ひとまとまりで覚える

if you got the chance

condition

imagined future opportunity

Contrast

Real conditionals versus unreal conditionals

The closest confusion is with real conditionals. Use the first conditional when the future condition feels possible or planned: If I finish early tomorrow, I'll call you. Use the second when you are imagining a less real future: If I finished early tomorrow, I'd call you, but I probably won't. Do not confuse third conditionals with ordinary past facts. If he missed the bus, he was probably late reports a real possibility about the past. If he had missed the bus, he would have been late imagines a past that did not happen.

Contrast 文法：B1 語彙：A1 Neutral

If I finish early tomorrow, I'll call you.

The first conditional presents the future condition as possible.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I finish early tomorrow

condition

real possible future condition

ひとまとまりで覚える

I'll call you

result

planned future result

Contrast 文法：B1 語彙：A2 Neutral

If I finished early tomorrow, I'd call you, but I probably won't.

The second conditional presents the future situation as imagined or unlikely.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I finished early tomorrow

condition

less real future condition

ひとまとまりで覚える

I'd call you

result

imagined future result

but I probably won't

stance

shows the speaker thinks it is unlikely

Contrast 文法：B1 語彙：A2 Neutral

If he missed the bus, he was probably late.

This reports a real possibility about the past; it does not imagine a different past.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If he missed the bus

condition

possible real past condition

ひとまとまりで覚える

he was probably late

result

likely real past result

Contrast 文法：B1 語彙：A2 Neutral

If he had missed the bus, he would have been late.

The third conditional imagines a past situation that did not happen.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If he had missed the bus

condition

unreal past condition

ひとまとまりで覚える

he would have been late

result

imagined past result

Usage rules

Would, could, might, and negatives

Choose the result modal for your meaning. Would gives the expected imagined result. Could often means ability or practical possibility: If we had a car, we could visit more often. Might makes the result less certain: If I had checked the forecast, I might have brought an umbrella. Negatives can appear in either clause and are very common for regret or relief: If you hadn't reminded me, I wouldn't have sent the form. In speech, would and had often contract, but the full grammar is still present: I'd can mean I would or I had, depending on the words after it.

Core 文法：B1 語彙：A2 Neutral

If we had a car, we could visit more often.

Could shows ability or practical possibility in the imagined world.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If we had a car

condition

imagined present possession

ひとまとまりで覚える

we could visit more often

result

imagined ability or possibility

Core 文法：B1 語彙：A2 Neutral

If I had checked the forecast, I might have brought an umbrella.

Might have makes the unreal past result less certain than would have.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I had checked the forecast

condition

unreal past action

ひとまとまりで覚える

I might have brought an umbrella

result

less certain imagined past result

Negative 文法：B1 語彙：A2 Neutral

If you hadn't reminded me, I wouldn't have sent the form.

Both clauses can be negative in third conditionals.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If you hadn't reminded me

condition

negative unreal past condition

ひとまとまりで覚える

I wouldn't have sent the form

result

negative imagined past result

Danger zone

Do not use would as the normal if-clause marker

A common mistake is putting would in the if-clause as the conditional marker. Not standard: If I would have known, I would have helped. Standard: If I had known, I would have helped. In standard second and third conditionals, the if-clause carries past simple or past perfect, and the main clause carries would. There is a separate polite use of would in an if-clause, where would means willingness, not unreal condition: If you would wait here, the manager will see you soon. Keep this exception separate from the main conditional patterns.

Mistake 文法：B1 語彙：A2 Informal

If I would have known, I would have helped.

In standard third conditionals, do not use would have in the if-clause as the conditional marker.

Corrected 文法：B1 語彙：A2 Neutral

If I had known, I would have helped.

Use past perfect in the if-clause and would have in the main clause.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If I had known

condition

standard unreal past condition

ひとまとまりで覚える

I would have helped

result

standard imagined past result

Exception 文法：B2 語彙：A2 Formal

If you would wait here, the manager will see you soon.

Would can appear in an if-clause when it means willingness in a polite request.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

If you would wait here

polite_condition

polite willingness, not an unreal-condition marker

ひとまとまりで覚える

the manager will see you soon

result

real future result

Summary

How to choose the form

To choose the right form, ask two questions. First, is the condition real or imagined? If it is real, use a real conditional pattern, not these unreal patterns. Second, where is the unreal condition in time? Imagined present or future takes the second conditional. Unreal past takes the third conditional. A past condition with a present result, or a present condition with a past result, takes a mixed conditional. Keep the logic clear: condition side sets the imagined world; result side shows what would, could, or might happen inside that world.

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Second, third, and mixed conditionals

Unreal conditionals: two clocks

Imagined conditions and results

意味のかたまり

意味のかたまり

Past form as distance, not always past time

意味のかたまり

意味のかたまり

Second, third, and mixed patterns

意味のかたまり

意味のかたまり

意味のかたまり

意味のかたまり

Two blocks: condition and result

意味のかたまり

意味のかたまり

Real conditionals versus unreal conditionals

意味のかたまり

意味のかたまり

意味のかたまり

意味のかたまり

Would, could, might, and negatives

意味のかたまり

意味のかたまり

意味のかたまり

Do not use would as the normal if-clause marker

意味のかたまり

意味のかたまり

How to choose the form

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