Extraposition: "It's Important To…" and Moving Heavy Clauses to the End

Here's a sentence that works, and still feels wrong the moment you say it out loud: That we forgot the worksheets is obvious. You can see exactly what it means. A teacher would tick it as grammatical. And yet your ear pulls a face — because the first half is a great heavy lump of words, That we forgot the worksheets, before you finally reach the little firework at the end: is obvious.

So you fix it without being asked. You write It's obvious that we forgot the worksheets, and the sentence relaxes. Something light fills the front seat — it — and the heavy clause slides round to the back where it has room to breathe. That's extraposition. You're not inventing a new sentence; you're rearranging the furniture so the room reads better.

I've spent a couple of decades in the margins of other people's writing, and I can tell you this move trips up almost nobody in speech — we all do it — yet in writing, under the little pressure of trying to sound proper, people forget it and reinstate the lump. A wobbly work email, an exam answer, the opening line of a story, that report you rewrite three times at 4:55 on a Friday: all of them go smoother once you can steer this on purpose rather than by luck. End-weight is the principle under the floorboards — that's 11.2 End-weight — and extraposition is the practical switch you can learn in an afternoon.

Before you read on, here's where we're heading. By the end of this article, you'll be able to: - Spot when a subject clause is simply too heavy for the front of a sentence. - Use dummy it to hold the front seat while the real clause moves to the back. - Write and fix the classic patterns — it is clear that…, it seems that…, it surprised me that…, it is important to… - Dodge the common traps: the double subject, the binned that, the non-clause that can't be moved. - Choose, deliberately, when not to extrapose — and revise your own drafts so dense ideas land smoothly, not like a dropped backpack.

Beginner (Foundation): what extraposition actually does

Here's the thing. English likes its subject near the start of a sentence — a smallish something the rest of the sentence can hang off. But life isn't always small. Sometimes what you need to put in that subject slot is the whole fact of something: that you left your kit at home, that the invoice is late, that the plot twist was rubbish.

Drop the whole fact into the subject slot and you get sentences like these:

• That the school trip got cancelled is frustrating.
• That the invoice is still outstanding is slightly awkward.

Both are grammatically legal. Both are practically bulky. The subject is itself a clause — a mini-sentence with its own little verb — and clauses are heavy. English has a tidy workaround: park a temporary, empty subject at the front, good old dummy it, and extrapose (that just means shove to the outside — to the end) the real content.

• It is frustrating that the school trip got cancelled.
• It is slightly awkward that the invoice is still outstanding.

The it here doesn't refer to anything. Nobody can point at it. It's a seat-warmer — a placeholder — and the real meaning sits after that (or after to…, in a close cousin we'll meet shortly). You're not lying to the reader; you're just managing weight. Think of a cinema seat: one tiny person arrives first so the row isn't empty, and the rest of the group pile in afterwards with the coats and the bags. Dummy it is the tiny person. The clause is the whole lot with the shopping.

You already speak this way, every single day:

• It's clear that the narrator is unreliable.
• It's strange that nobody replied.
• It seems that the meeting was moved.

And this is the natural, human version of what people otherwise strain to write — That X is true is Y — before realising nobody says that out loud, not even an English teacher. Nobody's born knowing the label. Your ear picks the pattern up first; the name comes later.

Quick recap: - Extraposition = light it at the front, heavy clause moved to the end. - Dummy it is a seat-warmer, not a "real" thing you can point to. - That the trip was cancelled is annoying → It is annoying that the trip was cancelled. - You already use this pattern all the time when you speak.

Intermediate (Development): the patterns you actually need — and how they go wrong

Once you can hear the basic move, you start noticing whole families of sentences that run on the same trick. Let's be honest — most real writing leans hard on just three or four of them. Get these working and your essays, your emails, and your story openings all clean up overnight.

Pattern 1 — It + linking verb + adjective + that-clause. This is the workhorse, the backbone of tidy prose:

• It is surprising that nobody noticed the error.
• It was obvious that she had planned the speech carefully.
• It seems unlikely that the renewal will go through unrevised.

The template is simple: It is / was / seems + adjective + that + clause. Compare the un-extraposed twins — That nobody noticed the error is surprising — and you'll hear the difference. Extraposition doesn't change the truth; it changes the landing strip.

Pattern 2 — It + a verb of seeming or discovering + that-clause. Here the verb does the job the adjective did:

• It seems that the homework deadline has changed.
• It appears that the invoice was paid twice.
• It turns out that we had the wrong timetable all week.

Seems, appears, turns out, happens, emerged — they all love this shape. It's also wonderfully useful when you need to hedge without collapsing into waffle: It seems that… softens a claim while keeping the grammar upright.

Pattern 3 — It + a verb of feeling or reaction + object + that-clause. A favourite in stories and reflections, and in any honest email:

• It surprised me that he apologised first.
• It annoyed the class that the test was moved without warning.
• It worried the whole team that the deadline slipped twice.

Notice the human object — me, the class, the whole team — sitting comfortably between the verb and the that-clause. That's exactly where it belongs. Don't try to reverse-engineer these; extrapose or recast, but don't force the that-clause into the object slot.

Pattern 4 — the close cousin: It is + adjective + to-infinitive. Not every heavy subject starts with that. Sometimes the weight is an infinitive clause — the to form of a verb:

• It is hard to finish the project in one night.
• It was kind of you to help with the posters.
• It is important to check your sources.

Underneath, that's To finish the project in one night is hard, extraposed. Same idea, different clause shape. You can even slot in for someone to make clear whose job it is — It is important for staff to keep the receipts, It would be silly for us to leave now. Both the plain and the for-version are correct; the second just names the person on the hook. (If clause types still feel wobbly, that's Pillar 3 territory — clause types — rather than something to drown in here.)

Now, where it all goes wrong. The first and most common mess is keeping both the original subject clause and the dummy it, so the sentence turns up wearing two subjects:

• ✗ That we made a mistake it is clear.
• ✓ It is clear that we made a mistake.
• ✓ That we made a mistake is clear.

Pick one structure. Not both. A half-and-half always reads like a revision that never got finished. The second mess is trying to extrapose something that isn't a clause at all — the thing you move to the back needs its own subject and verb:

• ✗ It is surprising your behaviour.
• ✓ It is surprising that you behaved that way.

Common Mistake: Writing It is clear the decision was right in a careful essay or a formal email and wondering why it reads slightly off. Nothing is wrong — in quick chat, dropping that is fine. But without it, a hurried reader momentarily trips: It is clear the decision… briefly looks like a noun phrase dangling, as if the decision were the thing that's clear. Put that back whenever the clause runs long: It is clear that the decision was right. A two-letter word is cheap insurance.

Pro-Tip: Let yourself write the clunky version first — That the narrator is unreliable is obvious — and don't fight it. Then, on the next pass, do a deliberate extraposition sweep: search your draft for That… is / was / seems openings and slide them into It is… that…. Revision beats inspiration nearly every time.

Quick recap: - Core template: It is / was + adjective + that + clause. - Cousins: it seems / appears that…, it surprised me that…, it is hard to… - Never keep both the original that-subject and the dummy it. - What you move to the back must be a clause — subject and verb — not a bare noun phrase. - Keep that when the trailing clause is long or the register is formal.

Advanced (Mastery): choosing extraposition on purpose — and knowing when not to

Once the patterns are automatic, the real craft turns up. Extraposition isn't a rule you must always obey; it's a choice about what sits in the spotlight and how a sentence spends its energy toward the end.

This whole pillar is about how English packages information — given or framing material tends to come first, new or weighty material tends to come last (11.1 Topic and comment, 11.2 End-weight). Extraposition is one specialised device inside that toolkit. When you write That the experiment failed is clear, you've put a full proposition in the topic slot — genuinely useful when that failure is already on the table and you want to say something about it. When you write It is clear that the experiment failed, you've put your evaluation up front as the frame, and the content arrives as the delayed comment. Different vibe. Both have a job. As for why English tolerates an empty it in the subject seat at all — that's a lovely, deep question, and it's parked in the generative-ideas article rather than unpacked here. Our business is the practical move.

So when should you refuse to extrapose? Keep the heavy clause up front when the clause itself is the hinge — the thing the next few sentences hang off:

• That the supplier reneged twice in three months makes further collaboration hard to defend.
• That the warrior is as lonely as she is brave becomes clear only in the final chapters.

Extraposing those would bury the sharp fact under an it is hard frame and soften an accusation, or a revelation, you may want kept sharp. Choice, not rule.

A quick word on telling it apart from it, because not every it is a seat-warmer. The folder? It's blue is ordinary, referring it. It's raining is weather it. Dummy it in extraposition is only the empty one tied to a clause that follows. And its sibling is worth knowing: dummy there, in there is a problem with the invoices, is the parallel device — same family of seat-warmers, different task, existence rather than evaluation. That's 11.5 There as a dummy subject, and forward of us sits 11.4 clefts, which highlight and contrast rather than simply delay.

English is also fussy about which adjectives host extraposition happily. Clear, obvious, important, surprising, unfortunate, possible, necessary, essential — all natural. Purely physical predicates refuse: It is blue that he left is nonsense, and It is stupid of him that he left comes out stiff and sidelong, where It was stupid of him to leave runs clean. Watch, too, the raising pairs some teachers love to circle:

• It seems that Maya is right. ≈ Maya seems to be right.
• It appears that the answer is 42. ≈ The answer appears to be 42.

Both are fine. Just don't glue them into hybrids — ✗ It seems Maya to be right. Choose the that-clause chassis or the raised-infinitive chassis; never half of each.

Two more honest warnings, both about register rather than correctness. First, overuse flattens everything. An essay or a self-review that opens every paragraph with It is clear that… / It is obvious that… / It is evident that… reads like a public-service announcement about yourself — the reader simply stops attending. Vary it. Lead with the content sometimes; use a short, robust main clause; try What matters here is… Extraposition is oil in the engine, not the only gear you own. Second — and this one matters most in working life — extraposition can quietly hide who did what:

• It was discovered that money was missing. — By whom? You? An auditor? A worried colleague?
• The auditor discovered that money was missing. — Clear.

In incident reports, performance reviews, apologies, anywhere accountability is the point, don't shelter behind the empty it. It is regrettable that mistakes were made is the sound of nobody owning anything; We got the figures wrong, and we're sorry is a human being taking responsibility. Sometimes the bureaucratic distance is exactly what you want — you're writing as an institution, not as yourself — but know that you're choosing it.

Common Mistake: Autopiloting It is important that… until the whole thing sounds like a memo photocopied from another memo, and reaching for evasive extraposition when something has gone wrong — It is unfortunate that errors occurred — when the moment actually calls for a person: We made errors, and we're fixing them. Vary the openings; own the mistakes.

Pro-Tip: Two revision tricks. First, the weight check: read only your sentence openings aloud. If a run of them starts with That… is / was, convert half into It is… that… and watch the prose unclench. Second, the substitution test when you're unsure whether extraposition is earning its place — strip the it and move the clause to the front. It is clear that we've missed the deadline → That we've missed the deadline is clear (clunky — extraposition was doing real work, keep it). It is true that he was at the meeting → That he was at the meeting is true (only mildly stiff — you probably didn't need the scaffolding at all; just write He was at the meeting).

Quick recap: - Extraposition is a choice about topic versus comment, not a moral duty. - Leave the clause fronted when the clause itself is the topic you care about. - Distinguish dummy it from referring it, weather it, and the sibling dummy there. - Prefer a clean that-clause or a raised-infinitive rewrite — never a hybrid. - Overuse and agency-hiding are register faults, not grammar faults — but they cost you readers all the same.

A note on UK vs US

There's no genuine British/American split in the grammar of extraposition. Dummy it, the that-clause and to-infinitive shapes, the whole toolkit — all of it works identically on both sides of the Atlantic. Only the surface spelling of neighbouring words follows house style, colour [US: color], recognise [US: recognize], centre [US: center], and that's a Pillars 8 and 6 matter, not an extraposition one. Inventing a difference here would be dishonest; a blank note is the truthful one.

Key Takeaways

• Extraposition parks a heavy subject clause — usually that… or to… — at the end, and fills the front seat with dummy it.
• The productive templates to keep in your pocket: It is clear that…, It seems that…, It surprised me that…, It is important to…
• Never stack both the original subject clause and dummy it — pick one structure.
• What you move to the back must be a real clause; keep that when the clause runs long or the register is formal.
• Use the un-extraposed form on purpose when the fronted clause is your actual topic.
• Treat extraposition as a revision strategy for end-weight — not as your only opening, and not as a place to hide who did what.

Check Your Understanding

1. Rewrite with extraposition: That the answer key was wrong is embarrassing.

2. What's the problem in That she won it is amazing? Fix it two different ways.

3. You're writing a formal note, and a long clause is coming. Which is safer — It seems the method failed after the second trial and never recovered or It seems that the method failed after the second trial and never recovered? Why?

4. Why might a writer deliberately keep That the notice was defective makes the whole forfeiture void rather than extraposing it?

5. Turn this into a smooth sentence using an infinitive extraposition: To finish the novel before Monday is hard.

6. Which it is a dummy (extraposition), and which refers to something real? (a) It was already dark when we got home. (b) It is likely that we'll hear back tomorrow.

Related articles in Pillar 11 (and beyond)

• 11.1 Topic and comment — how the front of a sentence frames what your reader tracks.
• 11.2 End-weight — the principle that makes extraposition feel inevitable.
• 11.5 There as a dummy subject — the parallel seat-warmer device, for existence rather than evaluation.
• 11.4 Cleft sentences (forward) — the next step, for highlighting and contrast once you've made your extraposition choices.
• Pillar 3: Clauses and phrases — what counts as a clause, finite that-clauses and to-infinitives.
• Pillar 9: Register and tone — matching scaffolding like it is significant that… to the job at hand.
• The deep "why does English allow a meaningless it at all?" question lives in the generative-ideas article, not here.