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文法
Information and style B2 C1

Focus structures: clefts, fronting, and emphatic do

Highlight the important part of a message with clefts, fronting, and emphatic do.

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図解ガイド

Focus as a Spotlight

FOCUS = one part is lit; the rest is background.

Plain message:
Maya solved the problem.
        │ choose what needs the light
        ▼
┌──────────── SPOTLIGHT SWITCHES ────────────┐
│ FRAME IT                                   │
│ It was Maya who solved the problem.        │
│ it = empty starter                         │
│ was Maya = spotlight slot                  │
│ who... = background link                   │
│                                            │
│ PREPARE → REVEAL                           │
│ What I need is a clear answer.             │
│ What... = open slot; is... = answer        │
│                                            │
│ MOVE IT FIRST                              │
│ That part I don’t understand.              │
│ first words = “look here first”            │
│                                            │
│ INSIST IT IS TRUE                          │
│ I do understand your point.                │
│ do = truth stress, not an action here      │
└────────────────────────────────────────────┘

Choose the message’s spotlight: frame it, move it first, or use do to stress that it is true.

Introduction

Why focus structures matter

English normally lets the end of a sentence carry much of the new information, but sometimes you want a different part to stand out. Compare “Maya solved the problem.” with “It was Maya who solved the problem.” The second version does not just report the event; it highlights or corrects the person. Focus structures are useful in meetings, stories, explanations, and arguments. This lesson covers three practical tools: clefts, which split one message into a focus frame; fronting, which moves a phrase to the beginning; and emphatic do, which strengthens a positive verb.
Contrast 文法：B2 語彙：A2 Neutral

Maya solved the problem. It was Maya who solved the problem.

The cleft version highlights or corrects the person, not just the event.

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。

Maya solved the problem
background_message
A neutral report of the event.
It was Maya who solved the problem
focus_frame
The cleft frame highlights the person as the important information.
ひとまとまりで覚える
Cognitive metaphor

The spotlight and the background

Think of a sentence as a small stage. Background information stays dim because it is already known, expected, or less important. The focused part gets the light because it answers the hidden question in the listener’s mind: who, what, when, where, why, or whether it really happened. Clefts build a frame around the spotlighted part. Fronting places that part first, like putting an object on the table before discussing it. Emphatic do shines the light on the truth of the verb itself, often because someone might doubt it.
Core pattern

It-clefts: it is the focus that matters

An it-cleft uses the frame it + be + focus + who/that + rest. The tense normally goes on be, not on the rest of the clause. Use who for people when it sounds natural; that works for people, things, times, and places. The focus can answer different questions: “It was yesterday that the results came out.” Questions and negatives change the be part: “Was it Ben who called?” “It isn’t the price that bothers me.” It-clefts are strong, so they often imply contrast: not today, not Anna, not the price, but this focused part.
Core 文法：B2 語彙：A2 Neutral

It was yesterday that the results came out.

An it-cleft can focus a time expression.

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。

It was yesterday that
cleft_frame
The it-cleft frame puts the time in focus.
ひとまとまりで覚える
the results came out
rest_of_message
The event that happened at the focused time.
Question 文法：B2 語彙：A1 Neutral

Was it Ben who called?

Cleft questions are useful when checking the focused information.

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。

Was it Ben who
question_cleft_frame
The cleft frame becomes a question by moving was before it.
ひとまとまりで覚える
called
rest_of_message
The action connected to the focused person.
Negative 文法：B2 語彙：A2 Neutral

It isn’t the price that bothers me.

A negative cleft often implies that something else is the real issue.

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。

It isn’t the price that
negative_cleft_frame
The negative cleft rejects one possible focus.
ひとまとまりで覚える
bothers me
rest_of_message
The reaction connected to the rejected focus.
Core pattern

Wh-clefts: prepare, then reveal

A wh-cleft, also called a pseudo-cleft, starts with a wh-clause and finishes with the focused answer. It is useful when you want to prepare the listener, then deliver the key point. The basic logic is wh-clause + be + focus: “What I need is a clear answer.” The wh-word can change the kind of focus: “Where we disagree is the budget.” For explanations, use a full clause after be: “What happened was that the server failed.” With all, the meaning is often only or nothing more than: “All we did was ask a question.”
Core 文法：B2 語彙：A2 Neutral

What I need is a clear answer.

A wh-cleft lets you prepare the listener before giving the key point.

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。

What I need
wh_cleft_setup
The wh-clause prepares the area of focus.
ひとまとまりで覚える
is
be_link
The linking verb connects the setup to the answer.
a clear answer
focused_answer
The key information delivered at the end.
Core 文法：C1 語彙：B1 Neutral

Where we disagree is the budget.

Where-clefts can focus a point, area, or source of difference.

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。

Where we disagree
where_cleft_setup
This wh-clause focuses the area of disagreement.
ひとまとまりで覚える
is the budget
focused_answer
The specific point of disagreement.
Core 文法：B2 語彙：B1 Neutral

What happened was that the server failed.

This frame is useful for explaining events, problems, or misunderstandings.

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。

What happened was that
explanation_frame
A common frame for explaining the real situation or cause.
ひとまとまりで覚える
the server failed
explanation_clause
The explanation delivered after the frame.
Core 文法：B2 語彙：A2 Neutral

All we did was ask a question.

All-clefts often reduce or defend the importance of an action.

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。

All we did was
all_cleft_frame
This frame means only this, nothing more.
ひとまとまりで覚える
ask a question
focused_action
The limited action being emphasized.
Core pattern

Fronting: put the chosen part first

Fronting moves a phrase to the beginning to make it the topic or contrast. It is common in speech when the fronted part is already in the air: “That part I don’t understand.” Object fronting usually keeps normal subject-verb order after the fronted phrase. Place expressions can create a more descriptive or literary order: “In the corner sat a small black cat.” When a negative or limiting adverb comes first, English uses inversion, similar to question order: “Never have I heard such a convincing explanation.” Without a clear reason, fronting can sound theatrical or unnatural.
Spoken 文法：B2 語彙：A2 Informal

That part I don’t understand.

Object fronting is common when the topic is already clear in conversation.

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。

That part
fronted_object
The object is moved to the front because it is the topic or contrast.
ひとまとまりで覚える
I don’t understand
comment_clause
The speaker’s comment about the fronted object.
Formal 文法：C1 語彙：A2 Formal

In the corner sat a small black cat.

This descriptive pattern is more common in storytelling or literary style.

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。

In the corner
fronted_place
A place phrase is moved to the front to set a scene.
ひとまとまりで覚える
sat a small black cat
inverted_verb_subject
Descriptive inversion after a fronted place phrase.
Formal 文法：C1 語彙：B2 Formal

Never have I heard such a convincing explanation.

After fronted negative adverbs like never, use question-like auxiliary order.

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。

Never have I heard
negative_fronting
A fronted negative word triggers auxiliary-subject inversion.
ひとまとまりで覚える
such a convincing explanation
focused_evaluation
The thing being evaluated strongly.
Core pattern

Emphatic do: insist that it is true

Emphatic do uses do, does, or did before the base verb in a positive clause. It is stressed in speech and often contradicts a doubt, softens a correction, or insists that something is true: “I do understand your point.” Use does with third-person singular: “She does work hard.” Use did for past time while the main verb stays in the base form: “We did send the report.” In imperatives, do can make an invitation or request warmer, more formal, or more insistent: “Do sit down.” Do not use emphatic do with be or another auxiliary.
Spoken 文法：B2 語彙：A2 Neutral

I do understand your point.

Emphatic do can reassure or soften disagreement.

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。

I do understand
emphatic_do
Do is stressed to show that the understanding is real.
ひとまとまりで覚える
your point
object
What the speaker understands.
Spoken 文法：B2 語彙：A1 Neutral

She does work hard.

Use does for third-person singular positive emphasis.

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。

She does work hard
third_person_emphatic_do
Does adds emphasis; the main verb stays in the base form.
ひとまとまりで覚える
Spoken 文法：B2 語彙：A2 Neutral

We did send the report.

Use did to insist that a past action really happened.

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。

We did send
past_emphatic_do
Did carries past tense and emphasis; send stays in the base form.
ひとまとまりで覚える
the report
object
What was sent.
Formal 文法：C1 語彙：A1 Formal

Do sit down.

This imperative use is polite or insistent depending on tone and context.

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。

Do sit down
emphatic_imperative
Do before an imperative can sound warmer, more formal, or more insistent.
ひとまとまりで覚える
Contrast

Do not confuse focus with identification

The closest confusion is a relative clause. A relative clause identifies or describes a noun: “The book that you lent me is excellent.” The that-clause belongs to book. A cleft focuses part of a whole message: “It is the book that I need.” Here the frame says, not the receipt, not the file, but the book. Also do not confuse emphatic do with ordinary auxiliary do. In questions and negatives, do may simply carry tense and grammar; it is emphatic only when it appears in a positive structure and receives stress. A dummy it, as in weather or time expressions, is not a cleft.
Contrast 文法：B2 語彙：A2 Neutral

The book that you lent me is excellent.

A relative clause identifies a noun; it does not create a cleft focus frame.

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。

The book that you lent me
noun_with_relative_clause
The relative clause identifies which book.
ひとまとまりで覚える
is excellent
comment
The speaker’s comment about the identified book.
Contrast 文法：B2 語彙：A1 Neutral

It is the book that I need.

The cleft highlights the book in contrast with other possible things.

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。

It is the book that
it_cleft_focus
The cleft frame focuses the book as the needed item.
ひとまとまりで覚える
I need
rest_of_message
The rest of the message connected to the focus.
Danger zone

Boundaries and common mistakes

Focus structures become risky when the grammar of the frame is mixed with other patterns. Do cannot emphasize a modal or another auxiliary. Mistake: “She does can help.” Corrected: “She really can help.” You can also stress can in speech. After fronted negative or limiting expressions, remember inversion. In clefts, do not drop the connector who or that after the focused phrase. Register matters too: clefts can sound deliberate or argumentative, fronting can sound dramatic, and emphatic do can sound warm, defensive, or insistent depending on stress and context. Use one clear focus tool unless you intentionally want a very marked style.
Mistake 文法：B2 語彙：A1 Neutral

She does can help.

Do cannot be used to emphasize a modal verb.

Corrected 文法：B2 語彙：A1 Neutral

She really can help.

With modals, add an adverb like really or stress the modal in speech.

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。

really can help
modal_emphasis
Use really or stress the modal instead of adding emphatic do before a modal.
ひとまとまりで覚える
Summary

The practical choice

Choose the focus tool by the job. Use an it-cleft when you want a precise correction or contrast. Use a wh-cleft when you want to build suspense, explain a situation, or name the real issue at the end. Use fronting when the listener already knows the area and you want to contrast one part with another. Use emphatic do when the important point is that the action is real or true. In neutral writing, use focus structures sparingly; in speech, stress and context make them sound natural.
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