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Subordinating conjunctions are a common grammar point in both IELTS Writing and Speaking. These conjunctions help connect ideas clearly, especially when writing complex sentences. Since there are many types of subordinating conjunctions, understanding their structure and usage is essential for scoring higher in IELTS and improving everyday English communication.

In this article, IDP will help you understand what subordinating conjunctions are, how they work, and how to use them properly in English sentences. Don’t forget to test your knowledge with the exercises at the end!

1. What Are Subordinating Conjunctions?

Subordinating conjunctions are words or phrases that connect an independent clause with a dependent clause. A dependent clause cannot stand alone and must be connected to a main clause to make sense. The subordinating conjunction always appears at the beginning of the dependent clause.

Examples:

  • This suitcase will not lock because it is too full.

  • While there is life, there is hope.

  • Drink whenever you feel thirsty during exercise.

liên từ phụ thuộc là gì

2. Benefits of Using Subordinating Conjunctions

  • Build complex sentences easily: Subordinating conjunctions serve as bridges between ideas, allowing you to write more complex and varied sentence structures—something highly valued in the IELTS Writing test.

  • Show clear cause-and-effect relationships: These conjunctions help you express the link between reasons and results effectively.

  • Improve communication and writing skills: When used correctly, subordinating conjunctions enhance both spoken and written English, helping you express ideas clearly and logically.

3. Types of Subordinating Conjunctions in English

a. Time and Place Conjunctions

Conjunction

Usage

Example

after / before

Shows when something happens

Minnie went to bed

after

she did her homework.

when

Refers to a specific time

Hoist your sail

when

the wind is fair.

where

Refers to a place

The moon is not seen

where

the sun shines.

wherever

Refers to any place

I will follow you

wherever

you go.

once / as soon as

Refers to an exact time

As soon as

the teacher arrived, the students stood up.

until

Refers to time, often with negatives

We know not what is good

until

we lose it.

b. Cause Conjunctions

Conjunction

Usage

Example

since / because

Expresses a reason

Because

he wanted to become a singer, he practiced all the time.

now that / in that / seeing that

Reason based on current time

Now that

we are in Europe, we should visit the Netherlands.

because of / due to / on account of + noun/verb-ing

Reason with noun or gerund

All flights were canceled

because of

fog.

c. Purpose Conjunctions

Conjunction

Usage

Example

so that / in order that

Shows purpose

I stepped aside

so that

she could enter.

to / in order to / so as to + verb

Purpose using infinitive

He leaned forward

so as to

hear more clearly.

d. Condition Conjunctions

Conjunction

Usage

Example

if

Conditional statement

If

it rains, we will stay indoors.

unless

Negative condition

Do not call me

unless

it is an emergency.

provided that / providing that

Condition with a requirement

I will go

provided that

I finish my work.

as long as

While or only if

I will support you

as long as

you are honest.

e. Comparison Conjunctions

Conjunction

Example

as ... as

Even Achilles was only

as strong as

his heel.

than

The heart sees further

than

the head.

like

There is no place

like

home.

4. Punctuation Rules for Subordinating Conjunctions

Correct punctuation improves clarity in complex sentences:

  • If the dependent clause comes before the independent clause, use a comma after it. Example: If you cannot be good, be careful.

  • If the dependent clause comes after the independent clause, no comma is needed. Example: A dog will not howl if you beat him with a bone.

5. Subordinating Conjunctions Exercises with Answers

Exercise 1: Fill in the blanks with unless, because, if, or when

  1. Linda often visits her mother ________ she comes back from Singapore.

  2. Lona cannot hear me ________ I speak louder.

  3. My cat ran away ________ the door was left open.

  4. We will have a picnic ________ it does not rain tomorrow.

  5. My boyfriend will buy a new car ________ he saves enough money.

Exercise 2: Rewrite the sentences using the given subordinating conjunctions

  1. Kovan wants to watch films. He finished his homework. (after)

  2. Clara will come to her birthday party. She has time. (if)

  3. My family cannot go camping. It is raining. (because)

  4. Heidi is studying hard. She wants to pass the exam. (so that)

  5. Kelvin went to bed. He was very exhausted. (because)

Answers:

Exercise 1:

  1. when

  2. unless

  3. because

  4. if

  5. if / when

Exercise 2:

  1. Kovan wants to watch films after he finishes his homework.

  2. Clara will come to her birthday party if she has time.

  3. My family cannot go camping because it is raining.

  4. Heidi is studying hard so that she can pass the exam.

  5. Kelvin went to bed because he was very exhausted.

Master Subordinating Conjunctions with IDP IELTS Preparation

Understanding subordinating conjunctions, their types, and how to use them effectively is a key step toward success in the IELTS test. With IDP, you can access personalized study resources, IELTS workshops, and practice tests tailored to your current level.

To get familiar with the actual IELTS test format, take a free IELTS mock test on computer at IDP. The test uses real exam conditions and is marked by Cambridge-trained examiners. Results are delivered within 2 days.

Register for your IELTS test with IDP today!

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About this Article

Published on 06 May, 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