Emphasizes a specific element (subject, object, time, place) by isolating it after "It is/was".
It was JOHN who broke the window • It was IN LONDON that we met
not who broke window
Was it Mary who called you?
Uses "What..." or "All..." to focus on the verb phrase or clause.
What I need IS a holiday • What he did WAS (to) apologize
All I want is peace
Is what you need more time?
| Example / Question | Positive / Short Answer | Negative / Short Answer |
|---|---|---|
| It-Cleft Subject Focus | It was John who won. | Emphasizes subject "John" |
| It-Cleft Place Focus | It was in Paris that we met. | Emphasizes location "in Paris" |
| Wh-Cleft Action Focus | What he did was resign. | Emphasizes verb action |
| Rule | Base / Standard Form | Applied Form |
|---|---|---|
| It-Cleft Tense Matching Rule | Match the tense of "It is/was" with the main event! Past event → "It WAS". Present event → "It IS". | It was John who called (past event) |
| Connector Choice Rule | Use WHO or THAT for people. Use THAT for objects, time, and prepositional phrases. Avoid using "where" or "when" in standard It-clefts. | It was in London THAT we met (NOT "where we met") |
| Wh-Cleft Verb Agreement | In Wh-clefts, the BE verb agrees with the emphasized noun that follows it! | What I need IS a holiday vs What I need ARE new shoes |
Directly refute a wrong assumption by emphasizing the correct facts.
Direct reader attention to the most vital argument or finding.
Highlight your exclusive focus using "All... is/was".
In spoken English, we use vocal stress to emphasize words. In written English, we cannot rely on voice tone, so we use Cleft Sentences to forcefully direct the reader's focus onto a specific piece of information.
A Pseudo-cleft is simply another name for a Wh-cleft sentence ("What I love IS reading"). It uses a Wh-clause as the subject followed by BE.
Yes! Both "What he did was RESIGN" and "What he did was TO RESIGN" are 100% grammatically valid.