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Sentence Composition: Main and Subordinate Clauses

In this worksheet, students practise differentiating between the main clause and the subordinate clause in complex sentences.

'Sentence Composition: Main and Subordinate Clauses' worksheet

Key stage:  KS 2

Curriculum topic:   Writing: Vocabulary, Grammar and Punctuation

Curriculum subtopic:   Extend Sentence Composition

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Clauses are different parts of a complex sentence. The following sentence contains two clauses linked by the connective so.

 

We put stickers on our suitcase so we could find it easily at the airport.

The main clause in a complex sentence makes sense on its own.

We put stickers on our suitcase so we could find it easily at the airport.

 

The subordinate clause begins with the connective and does not make sense on its own.

We put stickers on our suitcase so we could find it easily at the airport.

 

A subordinate clause can be at the beginning of a sentence as well as at the end.

So we could find it easily at the airport, we put stickers on our suitcase.

 

If the subordinate clause is at the beginning of the sentence we use a comma to separate the clauses.

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

The dog barked until the baby woke up.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

When James finished his homework, he had dinner.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

Tanya went to the cinema after she finished her homework.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

Because you were late, we missed the train.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

Whenever I drink coffee, I get a headache.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

When the dog barked, the baby woke up.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

The dog ran down the road until the cat disappeared.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

Unless he oversleeps, Mr Miller catches the 8.15 train every morning.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

After they built the snowman, the children sat by the fire.

main clause

subordinate clause

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

However many times she tried, Julia couldn't walk on her stilts.

main clause

subordinate clause

  • Question 1

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

The dog barked until the baby woke up.

CORRECT ANSWER
main clause
  • Question 2

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

When James finished his homework, he had dinner.

CORRECT ANSWER
subordinate clause
  • Question 3

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

Tanya went to the cinema after she finished her homework.

CORRECT ANSWER
main clause
  • Question 4

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

Because you were late, we missed the train.

CORRECT ANSWER
subordinate clause
  • Question 5

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

Whenever I drink coffee, I get a headache.

CORRECT ANSWER
main clause
  • Question 6

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

When the dog barked, the baby woke up.

CORRECT ANSWER
subordinate clause
  • Question 7

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

The dog ran down the road until the cat disappeared.

CORRECT ANSWER
main clause
  • Question 8

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

Unless he oversleeps, Mr Miller catches the 8.15 train every morning.

CORRECT ANSWER
subordinate clause
  • Question 9

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

After they built the snowman, the children sat by the fire.

CORRECT ANSWER
subordinate clause
  • Question 10

Decide whether the underlined part of the following sentence is the main clause or the subordinate clause.

 

However many times she tried, Julia couldn't walk on her stilts.

CORRECT ANSWER
subordinate clause
---- OR ----

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