A clause is a group of words with a (s) subject and a (v) verb.

For example:

(s) Computers (v) are important. = 1 sentence with 1 clause.

We can have two clauses though i.e. two groups of words with a subject and a verb:

Computers are important, but they are dangerous too. = 1 sentence with 2 clauses.

How about three sentence clauses?

Computers are important, but they can be dangerous too, so wemust be careful. = 1 sentence with 3 clauses.

Now let's add a fourth!

Computers are important, but they can be dangerous too, so wemust be careful when we use them. = 1 sentence with 4 clauses.

You'll have noticed then that a sentence is not the same thing as a clause.

A sentence is the group of words that comes between two full-stops and it must be a complete thought that makes sense.

So sentence clauses are what build a sentence, and one sentence can have a number of clauses.

What if there is no subject and verb?

If there is no subject or verb in part of the sentence, then this may be aphrase.

For example:

(p) In many countries around the world, flooding is becomingmore common.

A phrase is a group of words without a subject and verb (a phrase on its own obviously cannot be a sentence because every sentence has a subject and a verb!).

You should now know the difference between a sentence, a clause and a phrase. Time to practice!

Sentence Clauses Practice

Look at the sentences with clauses below, and put a check in the correct box to say how many clauses each sentence has.

Look carefully for the subjects and verbs. This will help you identify the clauses.

1. I'm going out tonight so I must get ready soon.

2. Global warming is a major problem, but it can be solved if we take action now.

3. Obesity is getting worse now in developing countries.

4. I don't know when I will be able to stop studying because I have many more exams.

5. It's cold outside so I'm going to stay in.

6. Although cars are essential, they cause a lot of pollution, so governments must take action soon, and individuals also need to play a role.

7. Why were you so late?

8. He said that he will come to see me tomorrow.

9. It is important to be on time, but it is ok to be late when you have an emergency.

10. I felt unwell when I ate the food, so I'll probably not eat at the restaurant again, but I think my friend will.