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CourseGrammarWords
  1. Home
  2. ›Grammar
  3. ›C1
  4. ›Cleft sentences: it-clefts and what-clefts
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Sentence structureC1

Cleft sentences: it-clefts and what-clefts

Focusing with It was X who/that... and What I need is..., plus all/the thing/the reason variants

Learning Goal

I can redirect focus in writing with it-clefts, what-clefts and their variants.

Look at these examples. Can you spot the grammar pattern?

It was the goalkeeper, not the striker, who won us the cup.

It was the goalkeeper, not the striker, who won us the cup.

What this city lacks isn't money — it's patience.

What this city lacks isn't money — it's patience.

Pay attention to the highlighted parts. What do they have in common?

Split one message into frame + focus:

CleftExample
it-cleftIt was the keeper who saved the match. It wasn't until midnight that they left.
what-cleftWhat I need is a long holiday. What annoyed us was the silence afterwards.
variantsAll I want is quiet. The reason I called is simple. The thing that matters is timing.

After What I need / What I want is, use a noun or to-infinitive (What I need is a break / is to sleep). Other what-clefts take a that-clause freely (What happened was that the bus broke down; What I mean is that...), and do takes a bare infinitive (What I did was call the police).

Clefts replace the missing intonation channel in writing — they tell the reader where the stress goes.

Apply this grammar in C1 course exercises

Practice Exercises
  • ≈ It was yesterday when they told me (heard in speech) → that: the careful it-cleft takes that/who
  • With need/want: *What I need is that I get some sleep → What I need is + noun/to-inf (but What happened was that... is standard)
  • not until uncleft: It wasn't until X that...

Common Error Patterns

when/which in it-clefts

it-cleft links with that/who

not until without cleft frame

It wasn't until X that Y

It was the goalkeeper, not the striker, who won us the cup.

It was the goalkeeper, not the striker, who won us the cup.

it-cleft with contrastive correction.

What this city lacks isn't money — it's patience.

What this city lacks isn't money — it's patience.

what-cleft with a negated focus.

The check for this topic is still being prepared

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Practice in course

Apply this grammar in C1 course exercises

C1 Course
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Related grammar topics

Previous topic: Inversion: the full systemNext topic: Ellipsis and substitution: so, neither, do so

Also in Sentence structure

  • There is / there areA1
  • Questions with do/does/didA1
  • Infinitive of purpose: to buy breadA2
  • Connectors: because, so, but, althoughA2
  • Conditionals 1 and 2B1
  • Relative clauses: who, which, thatB1
  • Reported speechB1
  • So and suchB1
  • Although, despite, in spite ofB1
  • Indirect questions: Could you tell me where...B1
  • Conditional 3 and mixed conditionalsB2
  • Question tagsB2
  • Reduced relative clausesB2
  • Linking devices: however, although, despite, thereforeB2
  • Inversion after negative adverbialsB2
  • Advanced reporting: questions, requests and verbs patternsB2
  • Whatever, whoever, however: no matter whatB2
  • As if and as thoughB2
  • Inversion: the full system
  • Ellipsis and substitution: so, neither, do so
  • Participle clauses: having finished, seen from above
  • Fronting and end-weightC2
  • Idiomatic syntax: the more..., no sooner..., so much soC2

Grammar C1·Grammar Reference