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Relative adverbs like why, where, and when act as connectors that link ideas together, helping sentences flow naturally. So how exactly are relative adverbs used? And how do they differ from relative pronouns? In this article, IDP IELTS will guide you through everything you need to know about relative adverbs in English.

1. What Is a Relative Adverb?

Relative adverbs such as when, why, and where are used to connect a relative clause to a noun, pronoun, or another clause in a sentence. They add extra information about time, place, or reason to the main clause.

Note: Relative adverbs function as adverbials and do not come directly before a verb.

Example: That is the reason why I always arrive early.

2. How to Use Relative Adverbs in English

Relative adverbs replace nouns that refer to time, place, or reason, and link two clauses together. They add more detail and help improve sentence clarity.

Relative Adverb

Replaces

Example Sentence

Where

Place, location, street, here, there

This is the cafe where we met for the first time.

When

Time, day, month, year

I remember the day when we went hiking together.

Why

Reason

She explained the reason why she was late.

3. Sentence Structure with Relative Adverbs

Relative adverbs appear after a noun and connect it with a relative clause using the structure:

Noun/Pronoun + Verb + Relative Adverb + Relative Clause

Example: She did not explain the reason why she was upset.

Relative adverbs can also be used with prepositions in more formal contexts:

Noun/Pronoun + Verb + Preposition + which + Relative Clause

Example: The hotel where we stayed → The hotel at which we stayed

4. Types of Relative Adverbs

There are three main relative adverbs: when, where, and why. Each one refers to a different aspect—time, place, or reason—and helps connect ideas in a sentence more smoothly.

When – Refers to Time

When is used to refer to the time when an event or action happened.

Example: I still remember the summer when we traveled to the mountains.

In more formal writing, you can replace when with in which or at which.

Example: I still remember the summer in which we traveled to the mountains.

Where – Refers to Place

Where refers to the place where something happens.

Example: This is the library where I used to spend hours reading.

In formal usage, where can be replaced by in which or at which.

Example: This is the library in which I used to spend hours reading.

Why – Refers to Reason

Why is used to explain the reason for an action or event.

Example: She never told me the reason why she decided to quit.

To make the sentence more formal, replace why with for which.

Example: She never told me the reason for which she decided to quit.

5. Difference Between Relative Adverbs and Relative Pronouns

While relative adverbs modify verbs and add detail about time, place, or reason, relative pronouns act as the subject or object of a clause and modify a noun or noun phrase.

Criteria

Relative Adverbs

Relative Pronouns

Grammatical function

Modify the verb; give details about time, place, or reason

Act as subject or object in a relative clause

Role

Connects the main clause to a subordinate clause

Describes or defines the noun it follows

Common examples

when, why, where

who, whom, which, what, whose

Usage

Often used in defining relative clauses

Used in both defining and non-defining clauses

Examples:

  • Monday was the day when we finally solved the problem.

  • The movie which I watched last night was amazing.

6. Relative Adverb Exercises with Answers

Exercise 1: Choose the Correct Answer

  1. The librarian _______ works in the library is my neighbor. A. who | B. whom | C. which | D. that ➡️ A

  2. The house _______ roof was damaged in the storm. A. whose | B. which | C. that | D. whom ➡️ A

  3. Do you know the reason _______ John did not attend the workshop? A. where | B. why | C. when | D. that ➡️ B

  4. That souvenir shop is _______ I bought gifts for my best friend. A. where | B. why | C. whose | D. when ➡️ A

  5. Jennie is the one _______ lent me this book for IELTS. A. who | B. which | C. where | D. when ➡️ A

Exercise 2: Rewrite the Sentences Using Relative Adverbs

  1. The book is amazing. I borrowed it from the library last week. ➡️ The book which I borrowed from the library last week is amazing.

  2. I will never forget the restaurant. We celebrated my birthday there. ➡️ I will never forget the restaurant where we celebrated my birthday.

  3. The boy did not come to school today. His bicycle was broken. ➡️ The boy whose bicycle was broken did not come to school today.

  4. The reason is unclear. He was late for that reason. ➡️ The reason why he was late is unclear.

  5. The movie was thrilling. It was recommended by a famous critic. ➡️ The movie which was recommended by a famous critic was thrilling.

Master Relative Adverbs with IDP

We hope this guide from IDP has helped you understand how to use relative adverbs correctly. These adverbs play a vital role in linking ideas and improving sentence flow. With regular practice, you will be able to use them confidently and effectively in both writing and speaking.

When you register for the IELTS on Computer with IDP, you can take advantage of the One Skill Retake feature—giving you a second chance to improve one skill. Make sure to check available IELTS test locations and flexible test schedules that fit your needs.

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About this Article

Published on 17 December, 2024

About this Author

One Skill Retake - IELTS Australia
Quynh Khanh

Tôi là Quỳnh Khanh - Content Writer có hơn 5 năm kinh nghiệm về lĩnh vực giáo dục