Giving Reasons
Adverb Clauses
Adverb clauses show cause and effect relationships. Adverb clauses can either begin a sentence, or end a sentence. If the adverb clause begins the sentence, place a comma after the adverb clause. No comma is necessary if the adverb clause finishes the sentence.
Because
An adverb clause with 'because' provides the reason for the action taken in the main clause. Adverb clauses with 'because' generally end a sentence. However, they can also begin a sentence.
Examples:
This item looks suspicious because, as per invoice, the item was priced over $1000.
As per invoice, the account will be de-activated because three consecutive payments were late.
Since
'Since' has the same meaning as 'because'.
An adverb clause with 'since' provides the reason for the action taken in the main clause. Adverb clauses with 'since' generally end a sentence. However, they can also begin a sentence.
Examples:
Since he wants to diversify his portfolio, he is looking at that government bond.
He didn't spend the money since he feels it is better to invest.
Prepositions
Because of
Adverb cases beginning with 'because of' are followed by a noun or noun phrase. Adverb clauses with 'because of' generally end a sentence. However, they can also begin a sentence.
Examples:
Your loan has been rejected, because of the consumer credit report.
He was able to buy a house because of the low borrowing rate his mortgage company provided.
Due to
Adverb cases beginning with 'due to' are followed is followed by a noun or noun phrase. Adverb clauses with 'due to' generally end a sentence. However, they can also begin a sentence.
Examples:
Due to the practical difficulties, the endorser said 'no' to the scheme.
Due to the high rate of crime the NYPD is hiring people to operate under separate cover to infiltrate businesses being run by the Mafia.