Cleft Sentences
Cleft sentences are used to emphasize particular information by dividing a simple sentence into two clauses. The word "cleft" means "split" or "divided." These structures help focus attention on specific elements of a sentence.
Types of Cleft Sentences
1. It-Cleft Sentences
Structure: It + be + emphasized element + relative clause
This is the most common type of cleft sentence.
Basic Examples
- Normal: John bought the car yesterday.
- It-cleft: It was John who bought the car yesterday. (emphasizes John)
- It-cleft: It was the car that John bought yesterday. (emphasizes the car)
- It-cleft: It was yesterday that John bought the car. (emphasizes yesterday)
Emphasizing the Subject
- Normal: The teacher explained the problem.
- It-cleft: It was the teacher who explained the problem.
Emphasizing the Object
- Normal: I need your help.
- It-cleft: It's your help that I need.
Emphasizing Adverbials
- Normal: We met at the conference.
- It-cleft: It was at the conference that we met.
2. Wh-Cleft Sentences (Pseudo-Cleft)
Structure: Wh-clause + be + emphasized element
Using "What"
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Normal: I like your honesty.
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Wh-cleft: What I like is your honesty.
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Normal: He needs a vacation.
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Wh-cleft: What he needs is a vacation.
Using "Where," "When," "How," "Why"
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Normal: We met in Paris.
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Wh-cleft: Where we met was in Paris.
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Normal: She left because she was angry.
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Wh-cleft: Why she left was because she was angry.
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Normal: He solved it by thinking carefully.
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Wh-cleft: How he solved it was by thinking carefully.
3. Reverse Wh-Cleft
Structure: Emphasized element + be + wh-clause
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Normal wh-cleft: What I want is peace.
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Reverse wh-cleft: Peace is what I want.
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Normal wh-cleft: What surprised me was his reaction.
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Reverse wh-cleft: His reaction is what surprised me.
Advanced Cleft Structures
All-Cleft
Uses "all" for emphasis:
- All I want is a quiet life.
- All we need is more time.
- All that matters is your happiness.
The Thing/Person + Relative Clause
- The thing that bothers me is his attitude.
- The person who helped me was my neighbor.
- The reason why I'm late is traffic.
Nominalizations
- The fact that he lied upset everyone.
- The way that she speaks is very clear.
- The place where we stayed was beautiful.
Tense Agreement in Cleft Sentences
The tense of "be" in cleft sentences usually matches the tense of the original sentence:
Present
- Normal: I like coffee.
- It-cleft: It is coffee that I like.
Past
- Normal: She bought a dress.
- It-cleft: It was a dress that she bought.
Present Perfect
- Normal: We have finished the project.
- It-cleft: It is the project that we have finished.
Negative Cleft Sentences
It-Cleft Negatives
- It isn't money that makes people happy.
- It wasn't John who broke the window.
Wh-Cleft Negatives
- What I don't like is his arrogance.
- What we haven't done is check the results.
Using Different Relative Pronouns
Who vs. That (for people)
- It was Mary who/that called you.
- It was the doctor who/that examined me.
Which vs. That (for things)
- It was the book which/that I borrowed.
- It was this restaurant which/that we chose.
Omitting Relative Pronouns
When the relative pronoun is the object, it can be omitted:
- It was the movie (that) we watched.
- It was this song (that) I heard on the radio.
Emphasis and Intonation
In spoken English, cleft sentences create natural stress patterns:
- It was JOHN who called. (strong stress on John)
- What I NEED is sleep. (strong stress on need)
Common Uses
1. Contrast and Correction
- "Did Tom call?" → "No, it was John who called."
- "You need a car." → "What I need is a bike."
2. Providing New Information
- It was in 1969 that humans first landed on the moon.
- What made the difference was their teamwork.
3. Expressing Strong Opinions
- What I can't stand is people being late.
- It's honesty that I value most.
Formal vs. Informal Usage
Formal Writing
- It is precisely this approach that we recommend.
- What requires immediate attention is the budget deficit.
Informal Speech
- It's you I want to talk to.
- What I'm saying is we need to leave now.
Common Mistakes
1. Wrong word order
- Incorrect: It was who John called you.
- Correct: It was John who called you.
2. Missing relative pronoun when required
- Incorrect: It was the book I need.
- Correct: It was the book that I need.
3. Wrong tense agreement
- Incorrect: It is yesterday that he came.
- Correct: It was yesterday that he came.
4. Overusing cleft sentences
Use cleft sentences for emphasis, not in every sentence.
Practice Exercises
Transform into it-cleft sentences (emphasize the underlined part):
- SARAH made the cake.
- I need YOUR ADVICE.
- We met AT THE LIBRARY.
- THE RAIN ruined our picnic.
Answers:
- It was Sarah who made the cake.
- It's your advice that I need.
- It was at the library that we met.
- It was the rain that ruined our picnic.
Transform into wh-cleft sentences:
- I want peace and quiet.
- She needs more confidence.
- They work in London.
- He succeeded through hard work.
Answers:
- What I want is peace and quiet.
- What she needs is more confidence.
- Where they work is in London.
- How he succeeded was through hard work.