Cleft Sentences

Imagine someone has just accused you of breaking a window you did not touch. You could reply, flatly, "Sam broke it." True, but limp. Or you could say, "It was Sam who broke the window, not me!" — and suddenly the blame lands exactly where you want it. That second version is a cleft sentence, and the difference in force is the whole point of this lesson.

The word cleft simply means "split". A cleft sentence takes one ordinary idea and splits it into two parts, so that one chosen bit gets all the spotlight. It is a way of shouting with your grammar instead of with capital letters or exclamation marks. Students often use clefts in speech without noticing, then forget they are available on the page — where they are one of the neatest tools for making sure the reader stresses the right word.

"It was… that…" (the it-cleft)

Take a plain sentence and split it to spotlight one part:

Plain: Sam broke the window. Spotlight on Sam: It was Sam who broke the window. Spotlight on the window: It was the window that Sam broke (not the door).

Notice how the same plain sentence can be split in different ways depending on what you want to stress. The frame It was… who/that… wraps around the important word and holds it up for the reader to notice. Use who when the spotlighted word is a person, and that for a thing — though that is acceptable for both.

"What… is…" (the wh-cleft)

There is a second common pattern, and it starts with What:

Plain: I need a rest. Spotlight: What I need is a rest.

This version works differently. It makes the reader wait: they travel through "What I need is…" before the key word finally arrives at the end. That short delay builds a little suspense, so the important word lands with extra weight. Because the emphasis falls at the end here, the wh-cleft is brilliant for saving your most important word for last:

What really annoyed me was the lie. What we did next changed everything.

Why use them

Clefts let you emphasise without shouting. Instead of bold type, capital letters, or three exclamation marks, you use sentence structure to steer the reader's stress onto exactly the word you mean. They are especially good for three jobs: pointing out who did something, picking out which thing you mean out of several, and holding back your most important word until the end. Handled well, a cleft makes your writing sound precise and deliberate rather than loud.

A second angle: clefts answer a hidden question

There is a neat way to understand what a cleft really does: it answers an unspoken question. When you say "It was Sam who broke the window," you are quietly answering the question "Who broke the window?" — and by choosing the cleft, you are insisting on that answer, as if correcting someone. Every cleft carries this flavour of settling a matter: this one, not the others. That is why clefts feel so natural when you are putting the record straight, disagreeing, or drawing a contrast. If you try building a cleft and cannot imagine what question it is answering, the emphasis probably is not needed, and a plain sentence will do. But when there genuinely is a question hanging in the air — who, which, what — the cleft steps in and answers it with weight. Thinking about the hidden question also helps you choose which word to spotlight: put the spotlight on whatever your reader most needs settled.

An edge case: don't let it turn flabby

Here is the honest warning. Because a cleft splits one idea into two parts, it always uses more words than the plain version — It was Sam who broke the window is longer than Sam broke it. That extra length is worth it when you genuinely want the emphasis. But if you cleft a sentence that did not need emphasising, you have simply padded it out and slowed the reader down for no reason. So before you split a sentence, ask: is there really one word here I want to spotlight? If yes, the cleft earns its extra length. If not, the plain sentence is stronger. The test is purpose, not decoration.

Watch out — save them for effect

A cleft is powerful precisely because it is unusual. One well-placed "It was… that…" at a key moment lands hard and stays with the reader. But a whole paragraph of clefts becomes exhausting — every sentence straining to be the most important one, until none of them is. Like all emphasis tricks, the cleft works by contrast with ordinary sentences around it. Write plainly most of the time, and split a sentence only when you truly want the reader to lean in. Used sparingly, it feels like control; used constantly, it feels like fuss.

Why it matters

Clefts give you a quiet, sophisticated way to manage emphasis, and examiners marking persuasive and creative writing reward exactly this kind of deliberate control over how a reader reads. In an argument, a cleft can nail your key point so it cannot be missed; in a story, it can make a revelation land with force. It is also a reading skill: once you can name a cleft, you can explain how a writer or speaker forces you to stress a particular word — the sort of analysis that earns marks in comprehension and literature. Learn the two patterns, use them on purpose, and you gain a tool for putting the spotlight precisely where you want it.

Quick check

Make a cleft that spotlights the bold word:

1. Priya scored the goal. → (spotlight Priya)

2. I want quiet. → (spotlight quiet, at the end)

3. The noise kept me awake. → (spotlight the noise)

4. I really admire her honesty. → (save it for the end)

Where next

• Cleft Sentences (Advanced) — the fuller treatment.
• How Word Order Shows What Matters — the idea behind clefts.
• Fronting: Moving Words to the Front — another emphasis tool.