Subordinate Clauses: Reason Clause

The "reason clause" is used to explain the reason behind a statement or action given in the main clause.

The reason conjunctions are:

• because
• as
• since

Examples:

• I studied hard because I wanted to pass the test.
• She may need some help as she's new.
• Since you've finished all your homework, you may go out.

Note: The prepositional phrases such as “because of”, “on account of”, “due to”, “owing to” don't introduce clauses. They are only followed by nouns:

• We camped there because of the dark. 
• Our delay was due to the heavy traffic.