Welcome to another comprehensive grammar lesson at QBT English! If you have ever felt that your English sentences sound a bit choppy, robotic, or overly simple, you are in the right place. Often, beginner and intermediate learners speak in short, disconnected sentences: "I met a man. The man speaks four languages." While grammatically correct, this style lacks flow.
To sound truly fluent and natural, you need to know how to combine sentences smoothly. This is where Relative Clauses and Relative Pronouns come in. By the end of this lesson, you will master how to use words like who, which, and that to connect ideas effortlessly, just like a native speaker. Let us dive into this essential English grammar rule with clear explanations and examples in Urdu!

Learning Goals
- Understand what a relative clause is and why it is essential for fluent English.
- Learn how and when to use the relative pronouns: who, which, and that.
- Differentiate between people, things, and animals when choosing your pronouns.
- Avoid common grammatical mistakes that learners frequently make.
- Practice with real-world examples and test your knowledge with a 10-question quiz.
What is a Relative Clause? (تعارف اور تعریف)
A relative clause is a mini-sentence (a clause) that gives extra information about a noun (a person, place, or thing) mentioned in the main sentence. It usually starts with a relative pronoun like who, which, or that.
Urdu translation: Relative clause ایک ایسا فقرہ ہوتا ہے جو کسی اسم (noun) کے بارے میں مزید معلومات فراہم کرتا ہے۔ اردو میں ہم عموماً اس کے لیے "جو" کا لفظ استعمال کرتے ہیں۔
Consider this comparison:
- Short sentences: I have a car. The car runs very fast. (میرے پاس ایک گاڑی ہے۔ گاڑی بہت تیز چلتی ہے۔)
- Combined with a relative clause: I have a car that runs very fast. (میرے پاس ایک ایسی گاڑی ہے جو بہت تیز چلتی ہے۔)
Notice how much smoother the second sentence sounds? It connects two thoughts into one cohesive, professional sentence.
The Main Relative Pronouns: Who, Which, and That
To build accurate relative clauses, you must understand which pronoun belongs to which category. Let us break them down one by one.
1. Using "Who" for People (لوگوں کے لیے "Who" کا استعمال)
We use who when we are talking about people. It replaces subject pronouns like he, she, or they.
Urdu rule: جب ہم کسی انسان (person) کی بات کر رہے ہوں، تو ہم who کا استعمال کرتے ہیں، جس کا مطلب اردو میں "جو" ہوتا ہے۔
| Separate Sentences | Combined with "Who" | Urdu Translation |
|---|---|---|
| I know the boy. He won the match. | I know the boy who won the match. | میں اس لڑکے کو جانتا ہوں جس نے میچ جیتا۔ |
| She is the teacher. She teaches us English. | She is the teacher who teaches us English. | یہ وہ استانی ہیں جو ہمیں انگریزی پڑھاتی ہیں۔ |
2. Using "Which" for Things and Animals (چیزوں اور جانوروں کے لیے "Which" کا استعمال)
We use which when we are talking about objects, places, or animals. It never refers to humans.
Urdu rule: بے جان چیزوں اور جانوروں کے لیے which استعمال کیا جاتا ہے۔
| Separate Sentences | Combined with "Which" | Urdu Translation |
|---|---|---|
| I bought a phone. It has a great camera. | I bought a phone which has a great camera. | میں نے ایک فون خریدا جس کا کیمرہ بہت اچھا ہے۔ |
| We saw a dog. It was barking loudly. | We saw a dog which was barking loudly. | ہم نے ایک کتا دیکھا جو زور زور سے بھونک رہا تھا۔ |
3. Using "That" as a Flexible Alternative ("That" کا ورسٹائل استعمال)
The word that is very powerful because it can be used for both people and things in defining relative clauses. It is often more casual and common in spoken English.
Urdu rule: That کو لوگوں اور چیزوں دونوں کے لیے استعمال کیا جا سکتا ہے۔ یہ بول چال میں بہت عام ہے۔
- For people: The man that helped me was very kind. (وہ آدمی جس نے میری مدد کی، بہت مہربان تھا۔)
- For things: The book that you gave me is fascinating. (وہ کتاب جو تم نے مجھے دی تھی، بہت دلچسپ ہے۔)
If you enjoy building structured sentences, you might also find our guide on Beginner English Course Lesson 1: Build Your First Correct English Sentences very helpful for mastering foundational sentence patterns.

Defining vs. Non-Defining Relative Clauses
As you advance in English grammar, you will encounter two primary types of relative clauses:
Defining Relative Clauses (وضاحتی جملے)
These give essential information about the noun. Without this clause, you do not know exactly who or what is being discussed. We do not use commas here.
- Example: The students who study hard will pass the exam. (جو طالب علم سخت محنت کرتے ہیں، وہ امتحان پاس کریں گے—یہاں یہ مخصوص طلباء کی بات ہو رہی ہے۔)
Non-Defining Relative Clauses (غیر وضاحتی جملے)
These give extra, non-essential information. If you remove the clause, the main sentence still makes complete sense. We must use commas around these clauses.
- Example: My elder brother, who lives in Lahore, is visiting us today. (میرا بڑا بھائی، جو لاہور میں رہتا ہے، آج ہمارے ہاں آ رہا ہے۔)
For more practice on connecting ideas smoothly in professional contexts, check out our lesson on Mastering English Workplace Communication: Essential Professional Phrases and Email Etiquette with Urdu Explanations.
Common Mistakes to Avoid
Even advanced learners make minor errors with relative clauses. Keep these key rules in mind to keep your grammar pristine:
- Repeating Pronouns: Do not include a second pronoun after the relative pronoun.
Incorrect: The man who he helped me was kind.
Correct: The man who helped me was kind. - Using "Who" for Things: Never use who for inanimate objects.
Incorrect: The car who is red.
Correct: The car which is red. - Forgetting Agreement: Ensure your verbs match the main noun correctly when the relative clause is added.
Grammar accuracy is built step by step. If you want to review other core tense structures while strengthening your grammar base, visit our guide on English Grammar Practice: Do, Does and Did with Urdu Explanation and Exercises.
Practice Quiz: Test Your Relative Clause Knowledge
Read each sentence carefully and choose the correct relative pronoun (who, which, or that) to fill in the blank.
- The woman _______ lives next door is a doctor.
- This is the computer _______ I bought yesterday.
- I lost the keys _______ were on the kitchen table.
- She is the artist _______ painted this stunning portrait.
- The train _______ arrives at 5 PM is from Karachi.
- He is the student _______ scored the highest marks in English.
- We visited the museum _______ houses ancient artifacts.
- Do you know the man _______ called me last night?
- The shoes _______ I wore to the party hurt my feet.
- Please give me the report _______ is on the manager's desk.
Quiz Answers and Explanations
- who (A woman is a person, so we use who.)
- which (A computer is a thing, so we use which.)
- that / which (Keys are things; both options work well here.)
- who (An artist is a person.)
- that / which (A train is an object / machine.)
- who (A student refers to a person.)
- which (A museum is a place/thing.)
- who (The caller is a person.)
- that / which (Shoes are clothing items / things.)
- that / which (A report is a document / thing.)
Lesson Summary
Mastering relative clauses is a milestone in your English learning journey. They allow you to transform simple, disjointed sentences into rich, complex, and professional statements. Remember these core takeaways:
- Use who for people.
- Use which for things and animals.
- Use that flexibly for both people and things in defining clauses.
- Practice combining your everyday sentences to build natural fluency.
Keep practicing with QBT English, stay consistent with your daily learning, and watch your English confidence soar. See you in the next lesson!
Continue Learning with QBT English
- Mastering English Modals of Necessity: How to Use Must, Have to, and Should with Urdu Explanations
- Mastering English Workplace Communication: Essential Professional Phrases and Email Etiquette with Urdu Explanations
- Mastering English Passive Voice: Transforming Sentences with Urdu Explanations
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