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Relative clauses: adding detail to a noun — Foreign languages, 11–13

A relative clause lets you add useful information about a person, thing or place without starting a second sentence.

One noun, then its extra clue

A relative clause is a small sentence attached to a noun: “The book that you lent me is here.” The words “that you lent me” tell you which book, so the listener does not have to guess. In English, who usually points to a person and which or that to a thing.

The problem of too many separate sentences

Without relative clauses, your message can become a list: “I met a girl. She plays chess. She lives next door.” That is correct, but it hides which facts belong together. Relative clauses grew useful because speakers needed to identify people and things precisely while keeping the sentence flowing.

Joining two sentences

Start with: “I found the keys. You lost the keys.” First notice that the repeated thing is “the keys”. Replace the second “the keys” with “that”: “I found the keys that you lost.” The final sentence tells us which keys, and the verb “lost” stays after the person who did the action.

Putting the extra clause in the wrong place

A common mistake is to put the extra information far from the noun: “I saw the dog in the park that was barking.” It may sound as if the park was barking, because “that was barking” sits next to “park”. Put the clause beside the noun it describes: “I saw the dog that was barking in the park.”

Useful clues in real life

You use relative clauses when you identify a song, a person or an object: “the café that sells fresh bread” or “the friend who has my charger”. They are useful in messages, maps, instructions and searches because a short extra clue can prevent a long explanation or a mix-up.

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