Prepositional Phrases: Reason (or cause) Phrase

A "Reason Phrase" indicates the reason of the action expressed in the sentence.
It answers the question: Why? For what reason?

The reason prepositions are:

• because of 
• on account of 
• for 
• from
• through

Examples:

• The barbecue was cancelled because of the rain. 
• We didn't go on account of the bad weather.
• He succeeded for many reasons. 
• Unfortunately you won't succeed from hard work alone. 
• The operation was successful only through the great skill of the surgeon.