Relative clauses add extra information about a noun by using words like who, which, or that, so your sentences feel clear and natural.
Relative clauses can look tricky on the page, yet they show up everywhere: in stories, news articles, academic writing, and everyday emails. Once you know how they work, you can express detail in a tight, readable way instead of piling on short, choppy sentences.
This guide walks through what a relative clause is, the main types you will meet in English, and a wide range of examples of relative clauses you can copy, adapt, and build on. You will see patterns, common mistakes, and simple steps to write your own clauses that sound natural.
What Is A Relative Clause?
A relative clause is a group of words with a verb that describes or identifies a noun. It usually starts with a relative pronoun such as who, whom, whose, which, or that. The clause cannot stand alone; it attaches to a noun and gives more detail about it.
Look at this sentence:
The student who sits near the window always arrives early.
The main clause is The student always arrives early. The extra part who sits near the window is a relative clause. It tells you which student you mean.
According to the British Council’s LearnEnglish page on defining relative clauses, this kind of clause gives information that you need in order to identify the person or thing. If you remove it, the sentence may feel unclear or too general.
Types Of Relative Clause In English
Most school grammars divide relative clauses into a small set of helpful groups. The labels vary a little from book to book, yet the ideas stay the same. The table below sets out the main types you will use and shows how each one behaves inside a sentence.
| Type | What It Does | Example Sentence |
|---|---|---|
| Defining (restrictive) | Identifies which person or thing you mean; needed for the meaning of the sentence. | The book that I borrowed yesterday is on your desk. |
| Non-defining (non-restrictive) | Adds extra detail about a noun that is already clear; set off with commas. | My sister, who lives in Canada, is visiting next month. |
| Subject relative | The relative pronoun is the subject of the verb in the clause. | The teacher who explained the task spoke slowly. |
| Object relative | The relative pronoun is the object of the verb in the clause. | The email that I sent yesterday still has no reply. |
| Possessive relative | Uses whose to show ownership or relationship. | The boy whose bike was stolen reported it. |
| Relative with preposition | Includes a preposition such as in, to, or with. | That’s the topic which we spoke about yesterday. |
| Reduced relative | Short form without a full relative pronoun and verb. | Students working in groups finished earlier. |
Many learners meet different names such as “restrictive” and “non-restrictive” for defining and non-defining clauses. The labels matter less than the core question: does the clause tell you which person or thing, or does it simply give extra detail about a noun that is already known?
The Cambridge Dictionary’s page on relative pronouns lists the most common pronouns and shows how they link a noun to a relative clause. You will see those same forms at work in the examples below.
Why Relative Clauses Matter For Clear Writing
Relative clauses help you pack information into a sentence without losing clarity. Instead of writing a chain of simple sentences, you can join ideas and show how they connect. That gives your writing a smoother flow and reduces repetition.
Compare these two versions:
Maria is a doctor. She works at the city hospital. She speaks three languages.
Maria, who works at the city hospital, is a doctor who speaks three languages.
The second sentence uses two relative clauses. It keeps all the information but avoids repeating the name. Once you start spotting this pattern, you will notice that strong academic and professional writing often relies on relative clauses for this kind of compact, tidy structure.
Examples of Relative Clauses In Everyday English
Many learners search online for examples of relative clauses in real sentences so they can copy the rhythm and structure. This section gathers practical examples grouped by pronoun, so you can see how each one fits into normal speech and writing.
Relative Clauses With “Who” And “Whom”
Use who for people when the pronoun is the subject of the verb. Use whom in formal style when the pronoun is the object, especially after a preposition. In everyday speech, many speakers now use who in both positions.
- The woman who lives upstairs plants flowers on the balcony every spring.
- The colleague who helped me with the report has years of experience.
- The player who scored the final goal became a local hero.
- The guest whom we invited yesterday has already confirmed the date.
- The manager with whom I spoke answered all my questions.
- The neighbour who I met at the meeting shared some useful advice.
When the sentence feels too heavy with whom, you can often move the preposition to the end and use who instead:
The manager who I spoke with answered all my questions.
Relative Clauses With “Which” And “That”
Use which or that for things and animals. Many style guides suggest that for defining clauses and which for non-defining ones, especially in formal writing, though everyday usage is more flexible.
- The laptop that I bought last year still runs smoothly.
- The book which you recommended was worth the time.
- The film that won several awards is based on a true story.
- The road which leads to the beach is narrow and steep.
- The course that starts next week has only a few seats left.
- My phone, which I use for work, needs a new battery.
Notice the commas around the last example. They show that the clause adds extra detail; the sentence still makes sense if you remove it: My phone needs a new battery.
Relative Clauses With “Whose”
Whose shows possession for people, animals, and sometimes things. It works in both defining and non-defining clauses.
- The student whose project won the prize spent weeks on the design.
- The author whose novel you enjoyed has released a new book.
- The family whose house flooded moved to higher ground.
- The company whose logo you recognise started in a small garage.
- The tree whose branches touched the roof had to be trimmed.
Relative Clauses With “Where”, “When”, And “Why”
Some grammars treat where, when, and why as relative adverbs. They link a clause to a place, time, or reason and behave much like relative pronouns in practice.
- The café where we first met has changed its menu.
- The town where I grew up sits near the border.
- The day when we moved house was stressful.
- The month when the exams start always feels tense.
- The reason why I called you is quite simple.
In many sentences you can replace these adverbs with in which, on which, or for which without changing the core meaning: The day on which we moved house was stressful.
Relative Clauses With Omitted Pronouns
In object relative clauses you can often drop the pronoun when it is not the subject of the clause. This gives a shorter version that still sounds natural.
- The jacket (that) I bought yesterday was on sale.
- The film (that) we watched last night went on too long.
- The email (which) you sent this morning answered my question.
- The song (that) she likes most plays on the radio every hour.
You cannot omit the pronoun when it is the subject of the clause: The woman who lives next door is correct, but The woman lives next door without the clause means something else, and The woman lives next door does not include a relative clause at all.
Building Your Own Examples of Relative Clauses
Once you have seen many patterns, you can start building your own sentences step by step. This section gives a clear method you can re-use whenever you want to write fresh examples for practice or for real communication.
Step 1: Pick A Simple Base Sentence
Begin with a clear statement that stands on its own. Choose a topic that feels familiar, such as school, work, family, hobbies, or travel.
- My friend runs a small business.
- The park is quiet in the morning.
- The lecture was hard to follow.
Step 2: Decide What Extra Detail You Want To Add
Ask yourself what extra information would help the reader. Do you want to say who, which one, what kind, where, when, or why? That choice will guide your pronoun.
- Who is your friend? What makes the business special?
- Which park do you mean? Where is it?
- Why was the lecture hard to follow? Who gave it?
Step 3: Choose A Relative Pronoun Or Adverb
Pick a form that matches the noun and the role of the pronoun in the clause:
- Use who or whom for people.
- Use which or that for things and animals.
- Use whose to show possession.
- Use where, when, or why for place, time, or reason.
Step 4: Attach The Relative Clause To The Noun
Place the relative clause directly after the noun it describes. Check that the sentence still flows when you read it aloud.
- My friend, who started a small bakery, runs a small business.
- The park, which is close to the river, is quiet in the morning.
- The lecture, which the new professor gave, was hard to follow.
Reading aloud helps you spot clauses that sit too far from the noun they describe. If the sentence feels long, try splitting it or reducing the clause.
Punctuation And Commas With Relative Clauses
Comma use with relative clauses often confuses learners. The key is to separate clauses that give extra detail from those that identify the noun.
When You Need Commas
Use commas around non-defining clauses that add extra information about a person or thing that is already clear.
- My laptop, which I bought five years ago, still works well.
- Paris, which many tourists visit each year, has strict rental rules.
- My brother, who lives near the coast, loves sailing.
If you remove the clause, the sentence still points to the same person or thing. The commas show that the clause is not needed to identify the noun.
When You Should Not Use Commas
Leave commas out of defining clauses that answer the question “Which one?” or “Which kind?”
- The students who arrive early get the best seats.
- The companies that care about customer service train their staff well.
- The houses which look over the lake cost more.
With these sentences, if you remove the clause, the meaning changes. You no longer know which students, companies, or houses the speaker has in mind.
Common Mistakes With Relative Clauses
Even advanced learners slip on small points such as comma placement, pronoun choice, or the position of a preposition. The table below shows errors that appear often in writing, along with clearer versions that you can copy.
| Common Mistake | What Feels Wrong | Clearer Version |
|---|---|---|
| The people, who live next door are friendly. | Comma splits a defining clause; it looks like extra detail. | The people who live next door are friendly. |
| The book which I bought it was expensive. | Repeated object; both which and it fill the same slot. | The book which I bought was expensive. |
| The man who I spoke to him works here. | Two objects for one verb; structure feels heavy. | The man who I spoke to works here. |
| The company who opened the branch is international. | Who is used for a company; many style guides prefer which. | The company which opened the branch is international. |
| The woman which called you is my aunt. | Which used for a person; standard English prefers who. | The woman who called you is my aunt. |
| The project, that finished last month, was tough. | That inside commas; many guides reserve that for defining use. | The project, which finished last month, was tough. |
| The car of which the color is red is mine. | Very stiff pattern for modern use. | The car whose color is red is mine. |
Many of these mistakes come from translating word by word from another language. When in doubt, check a trusted grammar source or corpus and model your sentences on patterns that native speakers use frequently.
Practice Ideas For Mastering Relative Clauses
Seeing rules on the page helps, yet practice makes the forms feel natural. Short, regular exercises work better than one long drill. Here are a few ideas you can use on your own or with students.
Rewrite Short Sentences As One Longer Sentence
Take two or three simple sentences and join them with a relative clause. This trains you to spot natural spots for extra information.
- I met a scientist. She studies climate data. She works at the local university.
- I met a scientist who studies climate data and works at the local university.
Try doing this with news headlines, textbook sentences, or your own notes. Over time, the structure becomes second nature.
Remove And Restore Relative Clauses
Take a paragraph that contains several relative clauses. Copy it into your notebook and remove each clause. Later, try to restore them from memory, or create new ones in the same places. This approach trains both recognition and production.
Create Mini Stories With Relative Clauses
Pick three or four nouns, such as “teacher”, “city”, “phone”, and “meeting”. Write a short story in which each noun appears with a relative clause at least once. You will quickly build a personal bank of sentences you can adapt later.
Final Thoughts On Relative Clauses
Relative clauses give you fine control over how you present information. With the patterns and examples in this guide, you can now recognise them in reading and use them confidently in your own writing.
When you need more detail about a noun, reach for a clause with who, which, that, or another relative word. Place it close to the noun it describes, watch your commas, and test the sentence aloud. Over time, you will build your own set of reliable, personal examples of relative clauses that you can draw on in exams, essays, and everyday communication.