Cleft & Pseudo-Cleft Sentences (Advanced)

You've opened a draft — a report, a personal statement, a slightly too-long reply to a manager — and you need one fact to land harder than the rest. Not louder. Harder. So you rewrite the sentence on instinct: It was the delayed survey data that changed the recommendation. And it works. The clause feels sharpened, almost pointed. Then half an hour later you try the same move twice more and the whole page starts to read like a courtroom drama.

That's the trouble with clefts in one breath. They're wonderful tools for focus — and, overused, they're the grammatical equivalent of jabbing your finger at every second word.

Here's the thing. Cleft and pseudo-cleft sentences aren't exotic. You already use them, usually without ever naming them — What I need is a coffee has almost certainly left your mouth this week. What follows is how they actually work under the bonnet [US: hood], how the pieces inside them have to agree, and — the part most guides skip — when they earn their place on the page and when the plainer form is simply better.

I'm going to assume you're already comfortable with the basic furniture: subjects, verbs, objects, relative clauses. If any of that feels wobbly, Pillar 3 on subordinate clauses is the place to firm it up; I won't re-teach it here.

Before you read on, here's where we're heading. By the end of this article, you'll be able to: - Build and unpick it-clefts, wh-clefts (pseudo-clefts), and reverse pseudo-clefts with confidence. - Use them to put genuine focus on one piece of information without fighting the natural rhythm of the sentence. - Keep pronoun and tense agreement tidy inside the cleft frame. - Judge when a cleft adds punch — and when it stalls, softens, or starts to sound like theatre. - Spot a real, narrow UK/US frequency tendency without mistaking it for a rule.

Foundation: what a cleft does, and why you'd want one

A cleft is a sentence that's been split — "cleft" is the old past form of cleave — so that one chunk of information can sit in a spotlight. The basic meaning is still all there; you're just rearranging the furniture so one piece of it gets the lamp.

Take a plain sentence:

Maya spotted the error in the final draft.

Nothing wrong with it — a clean, honest sentence. Subject, verb, object, no drama. But if the conversation — or the essay, or the argument round the meeting table — has been circling who spotted it, that flat sentence does too little. So we cleft it:

It was Maya who spotted the error in the final draft.

We've lifted one piece of the original — Maya — parked it after It was…, and finished with a relative-style clause (who spotted…). Everything after is background; Maya is the focus. That's the whole job of an it-cleft: It + be + focused element + that/who/which clause.

Listen to how the spotlight shifts when you move it, using the very same words:

• It was Maya who spotted the error. (not Alex, not the spell-checker)
• It was the error that Maya spotted in the final draft. (not the typos, not the missing footnote)
• It was in the final draft that Maya spotted the error. (not the first)

Same ingredients. Different lamp. And this is where clefts tie into everything Pillar 11 has been circling — end-focus (11.2) and fronting (11.3). Like fronting, a cleft rearranges ordinary word order so meaning lands where you want it; unlike a simple fronted word, though, a cleft builds a whole little frame — It was X that… — around the bit you're pointing at. (If end-focus and fronting feel hazy, their own articles will do more work than I should duplicate here.)

Now the close cousin: the pseudo-cleft, also called a wh-cleft. Instead of It was…, you open with a free relative clause — nearly always headed by what — then complete it with be and the focused phrase:

What Maya spotted was the error in the final draft.

Or, more everyday:

What I need is time. What surprised everyone was how quickly the numbers turned.

The first half of a pseudo-cleft sets up the slot — the thing we're waiting to hear. The second half fills it — and the pause between the two does half the work. Readers feel the little disclosure land on that second piece, which is exactly why these turn up when you want to sound reasoned, even a touch dramatic, without raising your voice: What this proposal needs is a clearer timeline.

And then there's the reverse pseudo-cleft, which flips that order so the focus comes first and the wh-clause rides along at the end:

Time is what I need. The delayed survey data is what changed the recommendation.

Feel the difference. The reverse form often sounds more like a verdict than a build-up — useful in a summary or a closing line, a bit heavy if you reach for it three times a paragraph.

Nobody's born knowing these labels — and you don't need them to speak well. What you already half-know by ear is the effect: plain order for a neutral delivery, a cleft when one piece of information simply has to stand out.

Quick recap: - A cleft splits a simple sentence so one element sits under a spotlight. - It-clefts use It + be + focus + that/who/which… - Pseudo-clefts (wh-clefts) use What… + be + focus. - Reverse pseudo-clefts put the focus first: X is what… - Same facts, different focus — and a different rhythm for the reader.

Development: the working patterns, agreement, and where people dig holes

Once you can feel a cleft, the craft is in building clean ones. Let's stay practical.

Pattern 1: the it-cleft, properly wired

The frame:

It + form of be + focused phrase + that / who / which + relative clause

Examples you might actually write or say:

• It is the Friday deadline that is causing the panic.
• It was the opening paragraph that the marker hated.
• It will be the review next month that decides the budget.
• It was my manager who finally answered.

A few working rules, none of them mystical.

Which relative word. Prefer who for people in careful writing (It was Sam who called), that or which for things, and treat that as the least fussy all-rounder in mixed register — It was the delayed train that made me late. Where, when, and why can appear when the focus is a place, time, or reason (It was in Bristol that I first learned to edit), though they lean formal, and plain that usually still does the job.

Tense of be. Match it to the situation you're describing, not to some free-floating rule about "proper English." It was the phone call that settled it for a finished past event; It is the phone call that still unsettles me for a present effect. The relative clause then has to keep to the same time-world, or the sentence wobbles — It was the email that will solve it fails because focus and clause have fallen out over the timeline.

Agreement of be — careful here. In standard written English the It was/is frame usually stays singular, because the grammatical subject is that dummy It: It was the students who complained, never It were the students…. The plurality lives inside the focus phrase and surfaces properly after who/that. Spoken varieties do sometimes say It were them that… — perfectly real, perfectly regional — but in the writing this article is training, It was the students who… is your form. (Agreement has a full home in Pillar 5 if you want the wider picture.)

Pronoun case inside the focus. After It was/is, formal writing still prefers subject-case pronouns when the focus is the subject of the relative clause: It was I who raised the issue — very formal — or, far more naturally now, It was me who raised the issue. Let's be honest: It was me who… is overwhelmingly accepted in all but the stiffest prose. In object positions the inner clause forces an object form anyway: It was her that they asked. Don't pick a fight you don't need — match the case the inner clause actually requires, and choose the register you mean. (Pronoun paradigms live in Pillar 2.)

Pattern 2: the pseudo-cleft (wh-cleft)

The frame:

What / Why / How / Where / Who… + clause + be + focused phrase

Solid everyday examples:

• What we need is a second pair of eyes on this.
• What he failed to mention was the cost.
• What bothers me is the silence in the replies.

Number agreement is where people get twitchy. When the focused element is plural, standard practice lets be agree with that focus:

• What we need is patience.
• What we need are clear next steps. — or — What we need is clear next steps.

Both are out there in the wild. Strict agreement with a plural focus tends to prefer are; plenty of careful writers still reach for is when they hear What we need as a single package meaning "the thing we need." I still hesitate over this one myself. My own rule of thumb in professional prose: if the focus is a clear plural, concrete set, I'll write are (What we need are clear next steps); if it's a clause or an abstract mass idea, I'll write is (What worries me is that nobody answered). Don't flog yourself over one disputed verb in a draft email — do get it calm and consistent in anything that'll be marked or published.

Tense, again, simply tracks meaning. What I wanted was an apology (then); What I want is an apology (now). Mix the two only when the time-mix is deliberate: What I wanted then is still what I need now.

Pattern 3: the reverse pseudo-cleft

The frame:

Focused phrase + be + what/who/where… clause

• A second pair of eyes is what we need.
• The cost is what he failed to mention.
• Friday is when everything tends to fall over.

These land especially well as closing moves — And a second pair of eyes is what we need — because they put the answer up front and then name the category it belongs to. Overdo them and they thud.

When the cleft earns its keep, and when it stalls

A cleft is doing real work when:

• you've been building towards a contrast — not the timetable; it was the room booking that stuck;
• you're correcting a wrong assumption;
• you're planting one fact that structures everything after it;
• you need a written rhythm that speech would get for free from stress and intonation.

A cleft is stalling when:

• every third sentence opens It was… that… — a spotlight that's always on lights nothing;
• you're using What I'd like to say is… to postpone actually saying it;
• the plain sentence already put the end-focus in the right place and the cleft merely added bulk — The delayed survey data changed the recommendation usually beats What changed the recommendation was the delayed survey data when nothing is being contrasted;
• you're hedging a decision you should own: What I'm suggesting we might consider is… — rewrite it, own the verb.

Watch what happens when the clefts breed. Here's a paragraph I've genuinely met in the wild, tidied only slightly:

What we need to do is identify the key issues that are causing the delays. What we have been seeing is a gradual increase in processing times. It is our internal approvals that are creating the bottleneck, and it is management sign-off that is taking the longest.

You can almost hear the slide deck. Now the same information with the scaffolding taken down:

First, we need to identify the key issues causing the delays. Processing times have been climbing steadily. Our internal approvals — management sign-off, above all — are the real bottleneck.

Same content, half the machinery, and a reader who can actually breathe. Honest aside from twenty-odd years of editing: textbooks adore clefts; readers tire of them. Use them like salt.

Common Mistake: Treating It was me that… as "always wrong." In careful modern writing and nearly all speech, It was me who/that… is fine. It was I who… is formal, and if you're not already writing in that register it can sound faintly staged — like someone straightening their tie mid-sentence. Pick consciously, not fearfully.

Pro-Tip: Before you cleft, ask: what am I contrasting? If you can't name it — not "something," but this, not that — the plain sentence is probably already the stronger one. Clefts sell contrast and correction, not decoration.

Quick recap: - Wire an it-cleft as It + be + focus + that/who…, and keep tense coherent across the whole frame. - Keep be singular with the dummy subject It; let number surface in the focus and the relative clause. - Pseudo-clefts open with what (etc.); reverse ones put the answer first. - Agreement after what… has a real but narrow grey area — be consistent and calm about it. - Use clefts for contrast, correction, and deliberate focus — never as a house style.

Mastery: edge cases, register, and the deeper writing choice

Once the frames are solid, the interest lives at the edges — because that's where a writer sounds deliberate rather than textbook.

Presupposition: the quiet extra a cleft smuggles in

A cleft doesn't only emphasise [US: emphasize]; it quietly presupposes. When you say It was Anna who agreed, the sentence treats "somebody agreed" as already settled and offers Anna as the answer to an unspoken who? That's why clefts are so natural in correction and contrast — they come pre-loaded with the assumption you're adjusting. Compare the flat I like meeting clients face to face with It's meeting clients face to face that I like: the second quietly implies rather than over Zoom, rather than by phone. Nobody wrote that contrast down, yet the reader hears it. Useful when you mean it — accidentally misleading when you don't.

Focusing things that aren't tidy noun phrases

You can spotlight far more than a name or an object:

• Prepositional phrases: It was on the train that she rewrote the opening.
• Adverbials of time or reason: It was only later that the numbers made sense; It was because of the delay that we scrambled.
• Whole clauses, especially in pseudo-clefts: What shocked me was that nobody had checked the source.
• Carefully, infinitives or -ing forms: What remains is to tell them; *What he hates is waiting*.

Push too far into bulky focus material, though, and your spotlight becomes a floodlight — every detail lit, none of them distinct. Keep the focused slot short where you can, and park the long reason or the heavy evidence after it.

Useful variants worth recognising

Once your ear is tuned, you'll catch idiomatic cousins of the wh-cleft everywhere — some so ordinary you'd never have flagged them as clefts at all:

• The all-cleft, which quietly means "nothing more than": All I want is a quiet weekend. All we did was ask a question. All you have to do is press the button.
• The the thing / the reason frame: The thing I love most is the atmosphere. The reason (why) I called is to check the details. Same set-up-then-reveal shape, dressed differently.
• Dropping the that. In speech and light prose the relative word often just vanishes: It was my brother I spoke to. It's her you need to convince. It was last year we moved house. There's an understood that in each, but nobody will fine you for leaving it out.

Truncation, and clefts that lean on context

In dialogue and tight prose you'll meet shortened it-clefts: Who finished it? — It was Maya. The relative clause is simply recovered from context, and that's fine in speech and lighter writing. In formal exposition, spell the frame out at least once if the link isn't obvious.

Nesting — usually a symptom, occasionally a choice

Stack carefully. What I think is that it was the process that failed is perfectly grammatical — a pseudo-cleft holding an it-cleft — but it's also the native tongue of someone stalling. If you catch yourself nesting frames, ask whether a straight claim would do the adult job: I think the process failed. Pillar 11's larger point is always the why underneath — information packaging exists to serve the reader's mind, not to decorate your nerves. (The under-the-hood machinery of which chunks can even be clefted is a constituency question; that's 11.11's territory, and the deeper theory belongs to a later piece still — I'm deliberately leaving the trees and movement diagrams alone here.)

Read for the stress: clefts, negatives, and questions

Clefts play beautifully with contrastive stress and with negation, and pairing a negative cleft with a positive one boxes a contrast in clean:

• It wasn't the cost that stopped us — it was the timeline.
• Was it really the pandemic that changed everything, or was it our reaction to it?
• What didn't help was the last-minute rewrite.

There's a reason this works on the page: a cleft is really written English borrowing the emphasis that spoken English gets from the voice. Read a doubtful sentence aloud. Wherever you naturally jab a finger at one word, you've found a candidate for a cleft — and wherever you're inventing a jab you don't actually mean, that's a cleft to cut. Your ear is usually wiser than your rule-book.

Register, voice, and "sounding clever"

Clefts aren't inherently formal or informal — It was me who did it is thoroughly everyday, while It is the responsibility of the tenant to ensure… is starched. But the patterns do lean. In formal non-fiction, reports, and a certain thoughtful essay, wh-clefts carry a reflective, thesis-building air: What this reveals is…, What remains unclear is…. In quick workplace prose — the Slack message, the two-line email — that same build can feel overcooked; I wanted to discuss the latest figures beats It was the latest figures that I wanted to discuss every time. It-clefts, by contrast, sit comfortably across the whole range wherever there's a genuine contrast: news writing, academic prose, crime fiction, two householders arguing about whose turn it is to buy the milk. Register has a whole home of its own in Pillar 9; treat this as one knot on a much longer rope.

One last honest point. Over-clefting is the classic intermediate-writer habit — you discover the tool and suddenly every idea seems to need the frame. Good advanced writing puts the tool back on the shelf most of the time and saves the spotlight for the beat that has to land.

Common Mistake: Stacking a cleft on top of the passive to bury who did what. It was decided by the committee that the meeting should be postponed uses a cleft and a passive to emphasise something while hiding the agent — self-defeating. Say it straight: The committee postponed the meeting. If you genuinely need the emphasis: It was the committee that decided to postpone.

Pro-Tip (why this matters for your writing): The best clefts are the ones the reader never notices. They do their quiet job — fix the attention, sharpen the emphasis — and move the reader on. If a reader pauses and thinks ah, nicely pointed, you've used it well. If they think why is this person talking like a barrister?, you've overreached. Read anything important aloud and listen for the difference.

Quick recap: - Clefts don't just emphasise — they presuppose, which is why they suit contrast and correction. - You can focus places, times, reasons, whole clauses — but keep the focused slot tight. - Learn the all-, the reason-, and dropped-that variants; they're idiomatic, not sloppy. - Nested clefts and soft What I'd like to do is… openings are early symptoms of stalling. - Advanced control is mostly knowing when not to cleft.

UK vs US Usage: a real but narrow tendency

Both it-clefts and wh-clefts are fully standard, fully grammatical, and instantly understood on both sides of the Atlantic. There is no rule making one "British" and the other "American," and I'd be lying to you if I dressed a habit up as grammar.

That said, there's a genuine — and modest — frequency tendency. Wh-clefts / pseudo-clefts (What this suggests is…, What we need is…) turn up a shade more often in UK formal and academic writing, where they work as a reflective sounding-board for a claim. A good deal of US informal prose — messages, workplace updates, accessible journalism — leans instead to the stripped-down form (This suggests…, We need…). So a London academic might write What the evidence suggests is a need for reform, while an American colleague writes The evidence suggests a need for reform — or It's reform that the evidence points to. All of them are correct; only the texture shifts.

It's a tendency, not a border. If you're writing for a mixed readership, keep the familiar it-cleft for a clear contrast and reach for the wh-cleft when you actually want the reflective build — never because a flag told you to. (The spelling in this piece follows UK conventions, with US swaps flagged inline; none of the cleft grammar itself hinges on spelling.)

Key Takeaways

• Clefts and pseudo-clefts split a simple statement so one element sits under a deliberate spotlight.
• It-clefts (It was X that…), pseudo-clefts (What… is X), and reverse pseudo-clefts (X is what…) package the same facts with different rhythm and force.
• Keep tense coherent across the frame; keep be singular with the dummy It in it-clefts; handle number after what… calmly and consistently.
• It was me who… is fine in almost all modern writing; It was I who… is formal — choose the register on purpose.
• Clefts earn their keep for contrast, correction, and structured focus; they stall when they soften a claim, bury an agent, or breed on the page.
• UK formal writing leans mildly to wh-clefts; US informal often prefers the plain form — a tendency, not a rule.
• The real advanced skill is restraint: most sentences want plain order, and the ones that need a cleft will tell you by the contrast you can name.

Check Your Understanding

Have a go before you peek — the answers are just below.

1. Name the type. For each, say whether it's (A) an it-cleft, (B) a pseudo-cleft / wh-cleft, (C) a reverse pseudo-cleft, or (D) not a cleft. - a) It was our timing that caused the problem. - b) What impressed me most was her patience. - c) Her patience was what impressed me most. - d) It is essential that we leave on time. - e) All I'm asking for is a bit of honesty.

2. Turn this into an it-cleft that focuses on the thing found, not the person: Priya found the missing appendix in the shared drive.

3. Rewrite as a pseudo-cleft (wh-cleft) to focus on patience: We need patience more than anything.

4. What's wrong with this draft line, and how would you tidy it? It were the contractors who boarded the windows.

5. As a frequency tendency (not a rule), which side of the Atlantic is this more characteristic of — and why might a writer choose the plainer form instead? What this report demonstrates is the cost of postponing maintenance.

6. Give one sharp reason to avoid a cleft in a sentence that just states a neutral fact with no contrast.

Where to Go Next

Within Pillar 11 - 11.1 — Information packaging and the architecture of the clause (why we rearrange word order at all). - 11.2 — End-focus and the given–new contract (the broader principle clefts help you manage). - 11.3 — Fronting and topicalisation (clefts' close neighbour — lighter rearrangement, no full frame). - 11.5 — related focus and packaging structures that build on cleft rhythm. - 11.11 — Constituency (the tests that show why certain chunks can be clefted and others can't). - 11.12 — the deeper theoretical account, for readers who want the generative "why under the hood" this piece deliberately left alone.

Elsewhere in the library - Pillar 2 — Pronoun paradigms and case (the I / me, who / whom edges inside a cleft). - Pillar 3 — Subordinate clauses and free relatives (the what / that / who material the frames are built from). - Pillar 5 — Agreement (the was/were, is/are decisions inside the frame). - Pillar 9 — Register and tone (when a reflective What this reveals is… fits the room, and when it doesn't).

Dip in wherever a concept here felt wobbly — and if you've got a paragraph you're not sure about, read it aloud and listen for the finger-jab. That test has served me better than any rule.