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11 structures · CEFR A2–C1
A clause is a sentence living inside another sentence. Relative clauses — who, which, that — add information about a noun without starting a new sentence, and they are the structure that turns short, correct, choppy English into English that sounds fluent. Noun clauses do the same job in the subject or object slot: "what I need is time".
Rebuild this lesson’s reference sentence. Other tasks can have other valid word orders.
Tap words to add or remove them. Drag words into the answer, or use the buttons. Arrow keys move a selected word.
This is the book that I want.
noun + who / which / that + clause (no commas)
Question 1 of 1
Choose an answer, then check why it fits.
This is a check of this example, not an English level assessment.
Example 1 of 4
यह वह किताब है जो मुझे चाहिए।
This is the book that I want.
A clause that identifies which one you mean. It takes no commas, because removing it would leave the sentence unclear.
The boy who is running is my brother.
A clause that identifies which one you mean. It takes no commas, because removing it would leave the sentence unclear.
This is the room that I got.
A clause that identifies which one you mean. It takes no commas, because removing it would leave the sentence unclear.
The chair that is broken is there.
A clause that identifies which one you mean. It takes no commas, because removing it would leave the sentence unclear.
Every one of these is a sentence Indian-English speakers genuinely produce — not a textbook example.
| Commonly said | Correct English |
|---|---|
The man who he called me is my uncle. | The man who called me is my uncle. "Who" is already the subject, so the extra "he" has nothing to do. Defining relative clauses → |
My brother, that lives in Pune, is a doctor. | My brother, who lives in Pune, is a doctor. A clause between commas cannot use "that" — it takes who or which. Non-defining relative clauses → |
The man called me is waiting. | The man who called me is waiting. Here "who" is the subject of "called", so it cannot be dropped. The book I bought → |
The letter writing yesterday was lost. | The letter written yesterday was lost. The letter did not write — it was written, so it takes the third form. The man standing there → |
I think that is he right. | I think that he is right. After "that", the clause keeps normal word order — subject then verb. I think that… → |
I know what does he want. | I know what he wants. Inside a statement there is no "does" and no swap. I know what he wants → |
He asked me that I am coming. | He asked me if I was coming. A yes/no question is reported with "if", not "that". I asked if / whether… → |
Because he was late. He missed the train. | Because he was late, he missed the train. A "because" clause cannot stand alone as a sentence. Adverb clauses → |
Grouped by CEFR band so you can start where you actually are, rather than at the top.
1 structure at this level.
5 structures at this level.
3 structures at this level.
2 structures at this level.
Dimmed tiles are structures whose example bank is still being written. The explanation and the mistake are there; the sentences are not, yet.
CoCap turns clauses into practice you can actually do: a Hindi sentence, your English answer, and one correction at a time.
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