Micro-listening
Adjective clauses: rules and daily examples
What are adjective clauses and how do you use them?
Adjective clauses describe nouns, so place each clause directly after the noun it modifies. Choose 'who' for people, 'which' for objects, 'that' for essential identifying information, and 'where', 'when' or 'whose' as needed. Use commas only when the clause adds optional information. Example: The nurse who called me left a message.
Key points
- Place the clause immediately after the noun it describes.
- Use 'who' for people and 'which' for objects.
- Use 'that' for essential information without commas.
- Use 'whose' to show ownership clearly.
This lesson has 5 stages. You can stop at any time and continue later.
At a glance
| Form | Use it for | Example |
|---|---|---|
| 'who' | People or named individuals | The guide who helped us was patient. |
| 'which' | Objects, animals, ideas or situations | The device which records sound is useful. |
| 'that' | Essential identifying information without commas | Choose the file that contains the results. |
| 'where' | Locations and places | This is the shop where I bought it. |
| 'whose' | Ownership by people, organisations or objects | We visited a museum whose roof was damaged. |
| Commas | Optional information about an identified noun | The library, which opened recently, is popular. |
Stage 1 of 5
Understand
What it means, when to use it, and mistakes to avoid.
The full explanation
An adjective clause is a group of words with a subject and a verb that describes a noun in your sentence. It acts like a multiword adjective. For example, instead of saying a blue binder, you can say the binder that sits on my desk. The clause tells the listener exactly which item you mean or gives helpful background about it.
The technician who repaired our printer explained the problem clearly.
Why it works: Who refers to a person and defines which technician helped us without commas.
3 more examples
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I found a quiet cafe where customers can read for hours.
Where describes the location and specifies the kind of cafe.
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Our office van, which was purchased last spring, needs an oil change.
Commas surround the clause because the van is already identified by our office.
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The manager hired an assistant whose language skills impressed everyone.
Whose shows that the language skills belong to the assistant.
Read the full guide
Find the exact noun before you add details
Before you write or speak an adjective clause, find the specific noun you want to describe. The clause must sit directly beside this noun so your listener understands your point immediately. When writers place a clause too far from its noun, sentences become awkward and confusing. Always identify the person, place, or thing first, and then attach your descriptive clause right after it.
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The graphic designer who created our new poster works remotely.
Why it works: The clause who created our new poster sits directly after designer.
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She returned the package that arrived damaged yesterday.
Why it works: That arrived damaged yesterday describes the package directly.
Your turn
Where should you place an adjective clause in your sentence?
Answer: Directly after the noun it describes
Show the answer
Answer: Directly after the noun it describes
An adjective clause must follow its noun immediately so listeners know which word is being described.
Choose who for people and which for objects
English separates people from objects when selecting relative pronouns. Use who when the noun is a person or a named individual. Use which when the noun is a machine, a document, an animal, or an abstract idea. Mixing these words confuses listeners because which sounds impersonal when applied to people. Sticking to this simple distinction keeps your sentences natural and grammatically sound.
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The mechanic who inspected my brakes found a small leak.
Why it works: Mechanic is a person, so who is the natural choice.
-
The software which controls our inventory updated overnight.
Why it works: Software is an object, so which describes it accurately.
You can practise this again in Adjective Order: Rules and Examples and Exclamations with What and Such: Clear Rules and Examples.
Your turn
Which word correctly completes this sentence: 'The doctor ___ treated my sister was very kind'?
Answer: who
Show the answer
Answer: who
Doctor refers to a human being, so who is the correct pronoun.
Use that to define specific things without commas
In daily speech and informal writing, native speakers frequently use that instead of which for things, and sometimes instead of who for people. Use that when the clause provides essential information that identifies the exact item. Clauses starting with that never take commas in standard American English. If removing the clause makes the noun vague or unclear, that is usually your best option.
-
Please bring me the folder that contains the signed lease.
Why it works: The clause defines which folder is needed, so no commas appear.
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The bus that stops near our bakery runs every ten minutes.
Why it works: That identifies the specific bus route among many others.
Your turn
Which sentence follows standard punctuation rules with 'that'?
Answer: The laptop that has a broken keyboard needs repair.
Show the answer
Answer: The laptop that has a broken keyboard needs repair.
Clauses beginning with that provide essential identifying details and do not take commas.
Connect places and times with where and when
When your noun refers to a physical location or a period of time, where and when provide clean transitions. Use where after nouns like office, town, room, or website. Use when after nouns such as day, month, year, or moment. These words replace awkward prepositional phrases like in which or at which during ordinary conversations, helping you speak more fluently and directly.
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This is the conference room where our team meets every Tuesday.
Why it works: Where refers to the conference room as an active place.
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I will never forget the morning when our flight got delayed.
Why it works: When links the description directly to the morning.
Your turn
Complete the sentence: 'We stayed at a hotel ___ breakfast was included.'
Answer: where
Show the answer
Answer: where
Hotel is a physical location, so where links the noun to the action.
Show ownership clearly by using whose
Use whose when you need to connect a noun to something that belongs to it. Many learners avoid whose because they think it only applies to people, but it can also describe companies, countries, or objects. Whose replaces possessive words like his, her, their, or its. Remember to place the owned item immediately after whose without an article like a or the.
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A client whose account was upgraded called with questions.
Why it works: Whose account replaces her account or his account.
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We chose a hotel whose rooms overlook the harbor.
Why it works: Whose rooms shows that the rooms belong to the hotel.
Your turn
Which option correctly combines: 'I know an architect. Her designs won an award'?
Answer: I know an architect whose designs won an award.
Show the answer
Answer: I know an architect whose designs won an award.
Whose replaces the possessive pronoun her and connects the two ideas directly.
Add commas when information is optional
Punctuation changes how your reader interprets a noun. If the listener already knows exactly which person or thing you mean, your clause is nonessential. You must place commas before and after nonessential clauses. If you remove a nonessential clause, the remaining sentence still identifies the noun completely. In speech, you mark these commas by taking brief pauses and dropping your voice slightly.
-
My oldest brother, who lives in Chicago, visits every summer.
Why it works: The speaker has only one oldest brother, so his city is extra detail.
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The yellow house, which was built fifty years ago, is for sale.
Why it works: The yellow house already points out the property, so commas surround the age.
Your turn
Why does 'My mother, who loves gardening, planted roses' require commas?
Answer: Because the identity of mother is already clear without the clause.
Show the answer
Answer: Because the identity of mother is already clear without the clause.
You have only one mother in this context, so the gardening detail is extra nonessential information.
Omit the pronoun when another subject follows
In conversational English, speakers often drop that, who, or which when the pronoun serves as the object of the clause. You can easily spot this pattern: if another subject and verb immediately follow the relative pronoun, you can safely omit it. Omitting the pronoun makes everyday communication sound faster and more natural, while keeping it sounds slightly more formal.
-
The recipe I found online produced delicious cookies.
Why it works: That or which is omitted before the subject I.
-
The coworker you met yesterday joined our project.
Why it works: Whom or that is omitted before the subject you.
Your turn
In which sentence can you naturally omit the relative pronoun?
Answer: The coffee that you brewed smells amazing.
Show the answer
Answer: The coffee that you brewed smells amazing.
You brewed has its own subject 'you', so 'that' acts as the object and can be omitted.
Keep the clause beside its noun to prevent confusion
A common error is placing a relative clause after the wrong noun in a sentence. When another noun sneaks in between your target noun and the relative clause, your message becomes confusing or unintentionally funny. Always check that the clause sits right next to the exact word it explains. Read your draft carefully to confirm that the modifying words point to the right subject.
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I gave a sandwich to the tourist that was freshly made.
Why it works: Awkward placement makes it sound like the tourist was freshly made.
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I gave the tourist a sandwich that was freshly made.
Why it works: Moving sandwich directly before that clarifies what was made.
Your turn
Which sentence correctly places the clause next to the intended noun?
Answer: She returned the dress that was too tight to the store.
Show the answer
Answer: She returned the dress that was too tight to the store.
The dress was too tight, not the store, so the clause must follow 'dress'.
Common mistakes
What learners often say, what to say instead, and why.
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Not this:
The chef which prepared our meal was friendly.Say: The chef who prepared our meal was friendly.
'Chef' refers to a person, so use 'who', not 'which'.
-
Not this:
The camera, that I bought yesterday, is expensive.Say: The camera that I bought yesterday is expensive.
Essential clauses beginning with 'that' do not take commas.
-
Not this:
I met a writer who her novels won prizes.Say: I met a writer whose novels won prizes.
'Whose' replaces the possessive 'her' and connects the writer with the novels.
-
Not this:
The jacket you chose it fits well.Say: The jacket you chose fits well.
Do not add 'it' after an omitted object relative pronoun.
Questions about "Adjective clauses: rules and daily examples"
Can I use 'that' instead of 'who' when talking about people?
In everyday spoken American English, people often use 'that' to describe a person in defining clauses. However, in professional emails, academic essays, and formal exams, 'who' is preferred for individuals. Never use 'that' when the clause is enclosed in commas.
The instructor who taught our seminar answered my email.
The instructor that taught our seminar answered my email.
How do I choose between 'which' and 'that' for things?
Use 'that' when the information is essential to identify the object. These defining clauses do not take commas. Use 'which' with commas when the clause merely adds an interesting bonus detail about an object that is already identifiable.
The printer that sits by the reception desk is out of paper.
Our main office printer, which was repaired last week, is out of paper.
When is it acceptable to drop words like 'who' or 'that'?
You can omit the pronoun when it functions as the object of the clause, meaning another subject immediately follows it. If the pronoun is the subject performing the action, you must keep it so the sentence remains grammatical.
The book I read yesterday was fascinating.
The author who wrote this book gave an interview.
Can 'whose' refer to objects or organizations rather than people?
Yes, 'whose' is commonly used for companies, places, and inanimate objects to indicate possession. It avoids clumsy constructions such as 'the roof of which' or 'the branches of which'.
We visited an ancient village whose stone houses remain intact.
She works for a startup whose software helps remote teams.
Before you go
Remember this
Locate your noun, place the adjective clause right next to it, and pick the relative word that matches the noun type. Omit commas when defining a specific member of a group. Insert commas when giving bonus details about a noun that is already identifiable.
Stage 2 of 5
Listen
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Listening 1 of 4
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Read the transcript
The mechanic who inspected our brakes works here.
The adjective clause 'who inspected our brakes' identifies which mechanic the speaker means.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
Listening 2 of 4
Listen, then type what you hear. Replay as often as you need.
0:00
Read the transcript
We visited a bakery where everyone buys warm bread.
'Where everyone buys warm bread' is an adjective clause modifying the noun 'bakery'.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- In American English this t sounds like a quick, soft d.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- In American English this t sounds like a quick, soft d.
Try a longer clip. Listen once, then replay the part you missed.
Listening 3 of 4
Listen, then type what you hear. Replay as often as you need.
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Read the transcript
A technician brought a new PC that operates very smoothly. She showed us several digital tools which easily organize company records during busy work weeks.
'That operates very smoothly' describes the computer, and 'which easily organize company records' describes the digital tools.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
This clip is longer. Follow the instruction above the answer field.
Listening 4 of 4
Listen, then type the missing words. The rest of the text is already there.
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Read the transcript
We finally moved our team into a renovated studio where everyone enjoys natural sunshine. Our supervisor, who oversaw all the planning, chose wooden desks that offer extra storage. She also welcomed a graphic designer whose artwork impressed our managers during interviews. This new space gives us a peaceful environment where artists can grow.
This passage models relative clauses with 'where', nonessential 'who', essential 'that', and possessive 'whose'.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
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The mechanic who inspected our brakes works here.
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Use: adjective clauses: rules and daily examples
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