A clause is a group of words that has a subject and a predicate, and clause is part of a compound sentence.
Two Kinds of Clauses
1. Independent clause
An independent clause contains a subject and a predicate. It can stand by itself as a complete sentence. A main clause expresses a complete thought.
I am doing my best.
Group B will cook our meals.
2. Dependent clause
A dependent clause is a group of words that has a subject and a predicate, but it cannot stand alone as a complete sentence. It is only a part of a sentence. A dependent clause is also called a subordinate clause; it is usually introduced by a subordinate conjunction or by a relative pronoun. Both of these connecting words communicate that the clause is subordinate, or dependent, to a main clause.
Because my sister borrowed my car.(Dependent clause)
I was unable to visit you because my sister borrowed my car.(Complete sentence)
Types of Dependent Clauses: Adverbial Clauses
Adverbial clauses function as adverbs. Adverbs modify verbs, adjectives, and other adverbs. Adverbs tell how, when, where, and to what extent the action is performed. Adverbial clauses answer the same questions and, in addition, express several other ideas which the simple adverb does not express.
I always wake up when the alarm clock rings.
Subordinate Conjunctions
A subordinate conjunction is called a connecting word because it makes the idea expressed by its clause subordinate to the main idea in the sentence.
- An adverbial clause is usually introduced by a subordinate conjunction.
- It also shows the relation between the subordinate (dependent) clause and the word in the main (independent) clause which the subordinate clause modifies.
- It is used to show that the clause which it introduces is a subordinate clause, and not a main clause.
- It also indicates the exact type of relationship that the subordinate clause has to the main clause.
The following are the subordinate conjunctions commonly used to introduce adverbial clauses:
| after | even though | till |
| although | except | though |
| as | if | unless |
| as…as | in order that | until |
| as if | provided | when |
| as long as | provided that | whenever |
| as soon as | since | where |
| as though | so…as | wherever |
| because | so that | whether |
| before | than | while |
| even if | that |
They played because they wanted to win the championship.
Kinds of Adverbial Clause
Subordinate conjunctions commonly used in adverbial clauses of the various types:
I read the book while I was waiting for you.
Conjunctions: after, before, when, whenever, since, until, as soon as, while
Please stand near the fountain where I can see you.
Conjunctions: where, wherever
I tried to speak in front of the crowd as if I were a politician.
Conjunctions: as, as if, as though
She worked as fast as was necessary.
Conjunctions: that, as…as, not so…as, than
The professor came in later than her usual schedule.
Conjunctions: as, than, so…as, as…as
She studied very hard so that she will top the exam.
Conjunctions: that, so that, in order that
The war is now inevitable so that we will have to evacuate.
Conjunctions: that, so that
I will go to you provided that you invite me.
Conjunctions: if, provided, provided that, unless
Mr. Yani won the chess game although he sacrificed his queen.
Conjunctions: although, though, even if
The robot was destroyed because your younger brother toyed with it.
Conjunctions: as, because, since
Common Mistakes
Incorrect: I run faster than him.
Incorrect: You can run as fast as us.
In an unfinished clause of comparison, supply the omitted words to check the case of the pronoun.
Correct: I run faster than he (runs).
By supplying the omitted word runs, it is now clear that the pronoun he is the subject of the phrase he runs and should therefore be in the nominative case (he) and not in the objective case (him).
Correct: You can run as fast as we (can run).
Similarly, by supplying the omitted words in the second sentence, it is clear that the pronoun we should be in the nominative case (we) and not in the objective case (us).
You have played longer than I.
Objective case (me)
The letter was sent to me.
My daughter embraced me.
Exercise: Error Detection
Direction: Each item below consists of four sentences. All sentences may be correct or one of them may have an error in grammar. If all sentences are correct, write E on your answer sheet. If one of the sentences contains an error, write the letter of that sentence on your answer sheet.
1
- A. Salome handed in an assignment this morning but it wasn’t satisfactory.
- B. Professor Lim told her that she had to do a paper again.
- C. Xylita discovered that she left but a part of her assignment.
- D. She blamed herself for her carelessness and promised to be more careful next time.
- E. No mistakes.
Show answer
C — left but a part should be left out a part.
2
- A. I didn’t saw Petra in the meeting this morning.
- B. She was sick but I did not know that.
- C. Do you think she will be able to come tomorrow?
- D. I have to know because she was given me the paperback I lent her last week.
- E. No mistakes.
Show answer
A — didn’t saw should be didn’t see.
Sentence D also has a slip: was given me should be gave me.
3
- A. If you are truly fond of someone you don’t laugh at his mistakes.
- B. You don’t become disappointed when he doesn’t seem able to do what has planned.
- C. If you believe in his ability you help him develop confidence in himself.
- D. This approach is very satisfying to both of you and will lead to a more pleasant relationship.
- E. No mistakes.
Show answer
B — what has planned should be what he has planned.
4
- A. Jonny spent two hours trying to solve the problem assigned to him.
- B. At first he don’t have any idea what the problem was about.
- C. After restating the problem he was able to outline the steps he would do.
- D. From then on, it was smooth sailing for him.
- E. No mistakes.
Show answer
B — he don’t have should be he didn’t have.
5
- A. We have lived in Batangas since 1980.
- B. I think we will be making it our home because father and mother think it is a good place to bring up children.
- C. Before 1980, my parents live in Aklan where they both taught at one of the schools there.
- D. We found Malaybalay a peaceful place and a healthful one, free from the distractions of city life.
- E. No mistakes.
Show answer
C — my parents live should be my parents lived.
Key Takeaways
- A clause has a subject and a predicate. An independent clause can stand alone; a dependent clause cannot.
- An adverbial clause works like an adverb and is introduced by a subordinate conjunction.
- Adverbial clauses express time, place, manner, degree, comparison, purpose, result, condition, concession, and cause or reason.
- In a clause of comparison, supply the omitted words to choose the right pronoun case: faster than he (runs).
FAQ
What is the difference between an independent and a dependent clause?
An independent clause expresses a complete thought and can stand alone as a sentence. A dependent clause also has a subject and a predicate, but it cannot stand alone.
What is an adverbial clause?
It is a dependent clause that functions as an adverb. It is usually introduced by a subordinate conjunction such as when, because, or although.
Why do we say “faster than he” and not “faster than him”?
Because the clause is unfinished. Supply the omitted word and it reads faster than he runs, so he is the subject of that clause.
Master English Grammar in 30 Days
Browse all 30 lessons
- Day 1 Grammar Lesson
- Parts of Speech Lesson
- Pronoun Classification
- Pronoun with Examples
- Verbs Lesson
- Tenses of Verbs
- Six Tenses of Verb
- Progressive Forms of Verbs
- Group of Verbs
- Subject-Verb Rules
- Active and Passive Voice
- Agreement of Subject and Verb
- Special Cases of Agreement
- Complements Lesson
- Prepositions Lesson
- Cases of Nouns and Pronouns
- Uses and Kinds of Adjective
- Adjectives have Comparison
- Kinds of Adverb
- Preposition and Prepositional Phrase
- Conjunction with Charts
- Clauses Lesson
- Adjective Clauses Lesson
- Classifying Sentences Based on Clauses
- Verbals Lesson
- Verbal Analogy Tests
- Gerund and Split Infinitive
- Punctuation Rules
- More About Punctuation
- List of Troublesome Words
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- Conjunction with Charts
- Adjective Clauses
- Classifying Sentences Based on Clauses
- Preposition and Prepositional Phrase
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