Adverb Clauses
In order to avoid errors in sentence structure especially
Run-Ons and Comma Splices, sentences can be combined using clauses. When
independent or subordinate clauses are combined with independent or main
clauses, the resulting sentence is a Complex Sentence. An independent
clause is a complete sentence which includes a subject and a verb. In
addition, the independent clause has meaning unto itself and can stand alone.
On the other hand, a dependent clause has no meaning in itself and thus, is a
fragment. In order to have meaning, the dependent clause must be
combined with an independent clause. Dependent clauses include an
introductory word identifying the type of clause, a subject, and a verb.
There are three kinds of dependent clauses: adverb clauses, adjective
clauses, and noun clauses. When the dependent clause begins the
sentence, a comma is used. When it follows the main clause, no comma
is used.
Adverb clauses work as single-word adverbs and modify verbs. They are
introduced with words called subordinating conjunctions. They
answer where, when, why, and how questions. There are several types of
adverb clauses:
1. Time Clauses begin with words related to time: after, as soon as,
before, since, until, when, while. When the main clause is future, the
adverb clause must always be in the present tense.
Examples: I have studying at Union County College
since I came to the United States.
After I finish ESL, I will pursue a degree in
Computer Science.
2. Clauses of Contrast indicate a meaning of contrast between the
main and subordinate clause. They are introduced with although, even
though, in spite of the fact that, though, while.
Examples: Although I registered late,
I was able to get all my required courses.
In spite of the fact that I didn't
have my driver's license, I wasn't stopped by a police
officer.
3. Clauses of Reason answer why questions. They are introduced with
because and since. Do not confuse since with the since that introduces a
Time Clause.
Examples: Since I left my wallet home,
I went back to get it.
4. Clauses of Purpose are similar to meaning to clauses of reason.
They are introduced with in order that and so that. Clauses of Purpose
usually use a modal. When the subordinating conjunction so that is used
the "that" may be eliminated. However, so not confuse the subordinating
conjunction so with the coordinating conjunction.
Examples: I went to the library so (that) I
could research my topic. (Purpose)
I spent a lot of time at the library researching my topic,
so I found some interesting articles.
4. Clauses of Condition indicate a situation that occurs when a certain
condition exists. They are introduced with if, unless, and whether.
Like Time Clause, the present tense is always used when the main clause is in
the future.
Examples: If I get accepted into the nursing
program, I will begin my courses in the fall.
Unless I get a raise, I will quit my job.
5. Clauses of Place answer the question where and are introduced with
where or wherever.
Example: I'll deposit my paycheck
where I have an account.
6. Clauses of Result indicate a cause and effect relationship, are
introduced with so...that. They have the same meaning as the coordinating
conjunction "so." These clauses are used with a modal.
Examples: I went to the library to research my topic, but it was
so crowded that I had to leave.
(Clause of Result)
I spent a lot of time at the library researching my topic, so I found some
interesting articles. (Compound Sentence with a result)
Reduced Adverb Clauses
When the subjects of the dependent and independent clauses are the same, the
adverb clause can be reduced to a phrase.
Examples: After studying, I went to the mall.
(Reduced from: After I finished studying, I
went to the
mall.)
Since coming to the United States, my English has really improved.
(Reduced from: Since I
came to the United States, my English has really improved.