B1 · IntermediateEnglish

Clauses & Linking Words (Cause, Effect, Contrast, Purpose)

By the flumi team About 7 min read 28 vocabulary wordsPractice exercises
Linking clauses and arguments

1. What Are Linking Words?

Linking words connect ideas and sentences.
They help us:

  • explain
  • compare
  • contrast
  • give reasons
  • show results

For example: “I was tired. I went home early.” → “I was tired, so I went home early.”

2. Reason (Because / Because of)

Used to explain why something happens.

Note: Reason (cause) explains why something happened. Purpose explains why someone does something (their intention).

2.1 Because + clause

because + subject + verb

Examples:

  • I stayed home because I was tired.
  • She went to bed early because she had a headache.

2.2 Because of + noun

because of + noun / noun phrase

Examples:

  • The game was cancelled because of the rain.
  • He was late because of traffic.

2.3 Difference Between “Because” and “Because Of”

Because Because of
followed by a clause followed by a noun
because he was sick because of his illness

2.4 As / Since + clause

As and since can introduce a reason that is already known or less important than the main result. Here, since means because, not a point in time.

Examples:

  • As the shop was closed, we went home.
  • Since everyone is ready, we can begin.

2.5 Due to / Owing to + noun

Due to and owing to are more formal alternatives to because of. Use them before a noun or noun phrase.

  • Due to heavy rain, the match was cancelled.
  • Owing to a technical problem, the website was unavailable.

3. Contrast

Used to show opposite or unexpected ideas.

3.1 But

Examples:

  • I wanted to go, but I was busy.
  • She is rich, but she isn’t happy.

3.2 Although

although + clause

Examples:

  • Although it was raining, we went outside.
  • Although he studied hard, he failed the test.

3.3 However

However is a linking adverb.

Use it in these safe patterns:

  • (1) Start a new sentence: However, ...
  • (2) In the middle of a sentence: It was, however, ...
  • (3) After a semicolon when joining two complete clauses: ...; however, ...

Don’t write: The hotel was expensive, however it was comfortable. (This is usually a comma splice.)

Examples:

  • The hotel was expensive; however, it was very comfortable.
  • The hotel was expensive. It was, however, very comfortable.

3.4 Even though

even though + clause shows a stronger or more surprising contrast than although.

Examples:

  • Even though it was raining heavily, we went outside.
  • She finished the race even though she was injured.

3.5 Despite / In spite of

Use despite or in spite of before a noun, noun phrase, or -ing form—not directly before a full clause.

Use despite the fact that + clause when you need to follow despite with a full clause.

Examples:

  • Despite the rain, we went outside.
  • In spite of feeling tired, he finished the work.
  • Despite the fact that it was raining, we went outside.

Compare: “Although it was raining, we went outside.” / “Despite the rain, we went outside.” Although is followed by a clause; despite is followed by a noun phrase.

4. Purpose

Used to explain why we do something.

Remember: because / because of give a reason (cause). to / in order to / so that show an intention (purpose).

4.1 To + infinitive

to + base verb

Examples:

  • I went to the shop to buy milk.
  • She studies hard to pass her exams.

4.2 In order to + infinitive

More formal.

Examples:

  • He saved money in order to travel.
  • She left early in order to avoid traffic.

4.3 For + noun / -ing form

for + noun / for + -ing form

(-ing form = verb + ing used like a noun.)

Use to + base verb to say why a person does something. Use for + noun / -ing to say what a thing is used for.

Examples:

  • This machine is for cutting wood.
  • I use my phone for work.

Use to + base verb for a person's purpose. Do not use for + infinitive, and do not use for + -ing when you mean why a person acts:

  • ❌ "I went to the shop for buying milk." / "I went to the shop for to buy milk."
  • ✅ "I went to the shop to buy milk."

4.4 So that + clause

Used to express purpose, often with can/could/will/would. It can be used with the same subject or a different subject.

Examples:

  • I’m studying so that I can pass the exam.
  • She wrote it down so that she wouldn’t forget.

5. Result

Used to describe consequences.

5.1 So

Use a comma before so when it joins two independent clauses (two full sentences).

Examples:

  • I was tired, so I went to bed.
  • He missed the bus, so he was late.

Don’t add a comma when so means “very” (intensifier), e.g., I was so tired.

5.2 So + adjective + that / Such a + noun + that

Use so + adjective + that to show that a quality produces a result.

  • The road was so icy that we stayed at home.

Use such a + noun + that (often with an adjective) to show that a thing or situation produces a result.

  • It was such a long meeting that we missed the last train.

5.3 Therefore

Therefore is a more formal linking word.

Common patterns:

  • (1) Sentence. Therefore, sentence.
  • (2) Sentence; therefore, sentence. (more formal)

Examples:

  • The road was closed. Therefore, we took another route.
  • The road was closed; therefore, we took another route.
  • She didn’t study. Therefore, she failed the exam.
  • She didn’t study; therefore, she failed the exam.

5.4 As a result / Consequently

As a result and consequently introduce a consequence. Consequently is more formal. Like therefore, they can begin a new sentence or follow a semicolon.

Examples:

  • The road was closed. As a result, we took another route.
  • She had not studied; consequently, she failed the exam.

6. Register and Punctuation with Linking Adverbs

Connector Register Punctuation pattern
however neutral to formal Sentence. However, sentence. / Sentence; however, sentence.
therefore formal Sentence. Therefore, sentence. / Sentence; therefore, sentence.
as a result neutral Sentence. As a result, sentence. / Sentence; as a result, sentence.
consequently formal Sentence. Consequently, sentence. / Sentence; consequently, sentence.

7. Common mistakes

  • ❌ "The hotel was expensive, however it was comfortable." → ✅ "The hotel was expensive; however, it was comfortable."
  • ❌ "Because of it was raining, we stayed inside." → ✅ "Because it was raining, we stayed inside." / "Because of the rain, we stayed inside."
  • ❌ "Although it was raining, but we went outside." → ✅ "Although it was raining, we went outside." / "It was raining, but we went outside."
  • ❌ "I was tired so I went to bed." → ✅ "I was tired, so I went to bed."

Quick check

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We missed our connecting flight the unusually long security line.

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8. Summary

In this lesson you learned:

  • because / as / since + clause; because of + noun phrase
  • but / although / even though / however / despite / in spite of
  • to / for / in order to / so that
  • so / therefore / as a result / consequently
  • how to combine clauses and ideas

Quick form reminders:

  • because = reason (cause)
  • to / in order to / so that = purpose (intention)
  • however/therefore usually start a new sentence or follow a semicolon when linking two complete clauses

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Last updated August 23, 2026