Cleft sentences in English C1
Divide one proposition into two clauses to control focus: It was Maya who found the error; What we need is more time.
Identify the element that deserves contrastive focus.
Build natural it-clefts, what-clefts and all-clefts.
Use agreement and relative clauses accurately without redundant pronouns.
How an it-cleft creates contrast
In It was Thursday that we met, the focused constituent appears between be and the relative clause. The sentence naturally answers an implicit contrast such as Thursday, not Wednesday.
The focused element can be a person, object, time, place or prepositional phrase. The underlying proposition remains the same; its information structure changes.
What-clefts present needs and results
What the team needs is clearer guidance prepares the reader for new information after be. This pattern is common in explanations, meetings and argumentative writing.
The what-clause functions as a nominal subject. Agreement normally follows the focused complement, although singular is common when the complement is treated as one idea.
| Neutral statement | Cleft sentence |
|---|---|
| We need a decision. | What we need is a decision. |
| Ana solved the issue. | It was Ana who solved the issue. |
Focus must answer an implicit question
A natural cleft responds to an information gap: who did it, when did it happen, where did it happen, or what is needed? Without that contrast, the structure can sound heavy.
Use prosody in speech and punctuation in writing to support the intended focus; grammar alone cannot rescue an unclear contrast.
From emphasis to cohesion
Clefts can connect a paragraph by turning known material into the frame and placing the important new point at the end. That end-focus makes dense explanations easier to process.
Vary clefts with neutral clauses. Repetition reduces their rhetorical force and can make prose sound artificially dramatic.