Linking: So, because, but, although Practice Tests with A2 Grammar Rules & Examples

Linking Words: So, Because, But, Although

When we speak or write in English, we often want to connect two ideas together. We use linking words to do this. Linking words help us explain reasons, show contrast, and give results. They make our sentences longer and more natural.

In this lesson, we will look at four very common linking words:

• so – to show a result
• because – to give a reason
• but – to show a contrast (something different or surprising)
• although – to show a contrast (something unexpected)

Here are some simple examples to begin:

It was raining, so I took an umbrella.
I was tired because I worked all day.
I wanted coffee, but the café was closed.
Although it was cold, we went for a walk.

Let us look at each linking word step by step.

Linking Word 1: Because

Because is used to give a reason. It answers the question "Why?"

Imagine your friend asks: "Why are you happy?"
You say: "I am happy because it is my birthday."

The word because connects the result (I am happy) to the reason (it is my birthday).

Pattern

[Result] + because + [Reason]

She is tired because she did not sleep.
He is hungry because he did not eat breakfast.
I am late because the bus was slow.

Because: Example Table

Result	Linking Word	Reason
I stayed home	because	I was ill.
She smiled	because	she was happy.
He wore a coat	because	it was cold.
They were quiet	because	the baby was sleeping.
We ran	because	we were late.

Linking Word 2: So

So is used to show a result or consequence. It tells us what happened next because of a reason.

Think of it this way:
The café was closed. → What happened? → We went home.
Together: The café was closed, so we went home.

So is the opposite of because in terms of word order. Compare:

We went home because the café was closed. (reason comes after because)
The café was closed, so we went home. (result comes after so)

Pattern

[Reason] + , so + [Result]

It was hot, so I opened the window.
She was hungry, so she made a sandwich.
He missed the bus, so he walked to school.

Note: We usually put a comma (,) before so.

So: Example Table

Reason	Linking Word	Result
It was raining	, so	I took an umbrella.
She was tired	, so	she went to bed early.
The film was long	, so	we left before the end.
He had no money	, so	he did not buy lunch.
I was bored	, so	I watched television.

Linking Word 3: But

But is used to show a contrast. A contrast means two things are different from each other, or one thing is surprising after the other.

Imagine you say: "I like coffee." Your friend expects you to drink it. But then you say: "I don't have any at home." This is surprising! We connect these ideas with but:

I like coffee, but I don't have any at home.

Pattern

[Idea 1] + , but + [Contrasting Idea 2]

She is clever, but she does not study.
The hotel was expensive, but it was not very nice.
I wanted to go out, but it was raining.

Note: We usually put a comma (,) before but.

But: Example Table

Idea 1	Linking Word	Contrasting Idea 2
I like swimming	, but	I don't like the cold water.
He is young	, but	he is very experienced.
The food was cheap	, but	it was delicious.
She wanted to help	, but	she was very busy.
I studied hard	, but	I did not pass the exam.

Linking Word 4: Although

Although is also used to show a contrast, like but. However, although is used in a slightly different way. It introduces an idea that makes the second part of the sentence surprising.

Think of this situation:
It was very cold. → You expect people to stay inside.
We went for a walk. → This is surprising!
Together: Although it was very cold, we went for a walk.

The word although means: "This is true, but the result is still surprising."

Pattern 1: Although at the beginning

Although + [Surprising fact] , [Main result]

Although she was tired, she finished her homework.
Although it was expensive, I bought the jacket.
Although he was ill, he went to work.

Note: When although is at the beginning of the sentence, we use a comma (,) in the middle.

Pattern 2: Although in the middle

[Main result] + although + [Surprising fact]

She finished her homework although she was tired.
I bought the jacket although it was expensive.
He went to work although he was ill.

Note: When although is in the middle of the sentence, we do not usually use a comma.

Although: Example Table

Position	Example Sentence
Beginning	Although it was late, she called her friend.
Beginning	Although the film was long, I enjoyed it.
Middle	She called her friend although it was late.
Middle	I enjoyed the film although it was long.
Beginning	Although he was nervous, he gave a great speech.
Middle	He gave a great speech although he was nervous.

Important Differences: But vs. Although

But and although both show contrast, but we use them differently.

Linking Word	Position in Sentence	Example
but	Always in the middle of the sentence	I was tired, but I finished my work.
although	Can be at the beginning or in the middle	Although I was tired, I finished my work. I finished my work although I was tired.

Important: Do not use but at the beginning of a sentence at A2 level. Use although when you want to start with the contrasting idea.

Important Differences: So vs. Because

So and because are both about reasons and results, but the word order is different.

Linking Word	What comes after it	Example
because	The reason	I stayed home because I was ill.
so	The result	I was ill, so I stayed home.

Both sentences have the same meaning, but the order of the information is different!

All Four Linking Words: Quick Comparison Table

Linking Word	Use	Example
because	Gives a reason (Why?)	She cried because the film was sad.
so	Shows a result (What happened?)	The film was sad, so she cried.
but	Shows a contrast (middle of sentence)	The film was sad, but I liked it.
although	Shows a contrast (beginning or middle)	Although the film was sad, I liked it.

Common Mistakes

❌ I was tired. But I finished my work.
✅ I was tired, but I finished my work.
(Use a comma + but to connect two ideas in one sentence, not two separate sentences.)

❌ I stayed home so I was ill.
✅ I was ill, so I stayed home.
(The reason comes first, then the comma, then so, then the result.)

❌ Because I was tired, but I went to the party.
✅ Although I was tired, I went to the party.
(Do not mix two linking words together in one sentence.)

❌ She passed the exam although she studied hard.
✅ She passed the exam because she studied hard.
(Use although for something unexpected. If studying leads to passing, it is not unexpected — use because instead.)

❌ Although it was raining, but we went out.
✅ Although it was raining, we went out.
(Never use although and but together in the same sentence.)

❌ I was hungry so because I ate a sandwich.
✅ I was hungry, so I ate a sandwich.
(Use only one linking word at a time.)

Linking Words: Quick Summary

Here is a short review of the four linking words we learned in this lesson:

• Use because to give a reason. It answers the question "Why?" The reason comes after because.
• Use so to show a result. The result comes after so. Remember the comma before so.
• Use but to show a contrast. It always goes in the middle of the sentence. Remember the comma before but.
• Use although to show a contrast. It can go at the beginning or in the middle of the sentence. Never use although and but together.

Remember: because and so are about reasons and results. But and although are about contrasts. Each word has its own position and pattern in a sentence.

Now practise linking words: so, because, but, and although in the exercises below.