Conjunctions of Cause and Effect 

In this lesson, master conjunctions of cause and effect to connect clauses showing reasons and results using combinations like "because," "since," and "so." Clear explanations and practice exercises to help you learn.

What Are Conjunctions of Cause and Effect in English?

What Are Conjunctions of Cause and Effect?

Conjunctions of cause and effect are used to show the relationship between two clauses or phrases where one clause or phrase is the cause of the other. They indicate that one event or action triggers another event or action to occur.

Conjunctions of Cause

The main conjunctions of cause in English include:

These conjunctions introduce the clause that expresses the reason for an action or event. 'Because' shows a direct relationship between cause and effect and the reason is often new information and emphasized in the sentence.
'Since' and 'as' can also indicate a reason, but they often suggests that the reason is already known or understood and the result is more emphasized that the reason. Check out the examples:

Example

I couldn't reach her because she was busy with the kids.

Since I am ten years older than you, you can learn from my experience.

As it was near midnight, we decided to wrap up the party.

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Conjunctions of Effect

The conjunction of effect is used to express the result of an action or event that happens in the independent clause. Here is the conjunction of effect:

Take a look at some examples with the conjunction of effect:

Example

I finally got my driving license, so my dad decided to buy me a car.

It was cold, so I wore a jacket.

Punctuation Rules for Conjunctions of Cause

Conjunctions of cause can be used at the beginning of a sentence to introduce a clause that expresses the cause of an action or event. However, in this case a comma must be used after the first clause to separate it from the main clause. Here are the examples:

Example

As the store was closed, we left.

Since I've lost all the money, we should move into a smaller house.

These subordinating conjunctions can also be used between the clauses, in which case, no comma is needed. Check out the examples:

Example

She was scared of swimming because they pushed her into the pool once.

Let's order a pizza since the pasta is burnt.

Punctuation Rule for the Conjunction of Effect

'So' shares some of the properties of coordinating conjunctions. As a result, you cannot use it at the beginning of a sentence, and when it is used between the clauses, it has to be preceded by a comma. For example:

Example

My cat is white, so this one is not mine.

He is a wonderful doctor, so he deserves the prize.

Review

Conjunctions of cause and effect connect two clauses and provide information that explains the reasons or results of an action. They include:

1.

Because

2.

Since

3.

As

4.

So

Quiz:


1.

Sort the words to form a correct sentence.

delayed
storm
a
was
the
,
as
was
flight
approaching
.
2.

Match each sentence half to its correct ending.

The team practiced daily,
We postponed the picnic
Since the bridge was under repair,
All flights were grounded as
we took a detour.
because dark clouds gathered.
so they won the championship.
a storm approached.
3.

Complete each sentence with the correct conjunction of cause and effect.

The software update contained critical fixes,

all users must install it immediately.

the air quality reached hazardous levels, schools canceled outdoor activities.

The experiment failed

the samples were contaminated.

so
as
because
4.

Which sentence correctly uses a cause conjunction with proper punctuation?

A

Because the train was delayed, we missed the meeting.

B

We missed the meeting because, the train was delayed.

C

The train was delayed as we missed the meeting.

D

Since the train was delayed; we missed the meeting.

5.

Which sentence uses a conjunction of cause or effect incorrectly?

A

The path was slippery because it had rained all night.

B

So we left the party early, we were tired.

C

Since the library was closed, I borrowed a book from a friend.

D

My phone battery died, so I couldn't call for help.

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