Independent clauses
He saw her. The Washingtons hurried home. Free speech has a price. Grammatically complete statements like these are sentences and can stand alone. When they are part of longer sentences, they are referred to as independent (or main) clauses.
Two or more independent clauses can be joined by using coordinating conjunctions ( and, but, for, nor, or, so, and yet) or by using semicolons. The most important thing to remember is that an independent clause can stand alone as a complete sentence.
In the following example, the independent clause is a simple sentence.
Erica brushed her long, black hair.
Next, the coordinating conjunction and joins two independent clauses.
Fernando left, and Erica brushed her long, black hair.
Next, a semicolon joins two independent clauses.
Fernando left; Erica brushed her long, black hair.
All sentences must include at least one independent clause.
After she told Fernando to leave, Erica brushed her long, black hair.
In the previous sentence, the independent clause is preceded by a clause that can't stand alone: After she told Fernando to leave.
Erica brushed her long, black hair while she waited for Fernando to leave.
Here, the independent clause is followed by a clause that can't stand alone: while she waited for Fernando to leave.
Beginning sentences with coordinating conjunctions
Any of the coordinating conjunctions ( and, but, for, nor, or, so, and yet) can be used to join an independent clause to another independent clause. Can you begin a sentence with one of these conjunctions?
No one knew what to do. But everyone agreed that something should be done.
An old rule says that you shouldn't. But beginning a sentence with a coordinating conjunction is acceptable today. (Notice the preceding sentence, for example.) Sometimes beginning a sentence this way creates exactly the effect you want. It separates the clause and yet draws attention to its relationship with the previous clause.
Subordinate clauses
A subordinate clause has a subject and verb but, unlike an independent clause, cannot stand by itself. It depends on something else in the sentence to express a complete thought, which is why it's also called a dependent clause. Some subordinate clauses are introduced by relative pronouns ( who, whom, that, which, what, whose) and some by subordinating conjunctions ( although, because, if, unless, when, etc.). Subordinate clauses function in sentences as adjectives, nouns, and adverbs.
Relative clauses
A relative clause begins with a relative pronoun and functions as an adjective.
In the following sentence, the relative pronoun that is the subject of its clause and won the Pulitzer Prize is the predicate. This clause couldn't stand by itself. Its role in the complete sentence is to modify novel, the subject of the independent clause.
The novel that won the Pulitzer Prize didn't sell well when it was first published.
In the next example , which is the relative pronoun that begins the subordinate clause. Celebrities is the subject of the clause and attended is the verb. In the complete sentence, this clause functions as an adjective describing ceremony.
The ceremony, which several celebrities attended, received widespread media coverage.
Note that in a relative clause, the relative pronoun is sometimes the subject of the clause, as in the following sentence, and sometimes the object, as in the next sentence.
Arthur, who comes to the games every week, offered to be scorekeeper.
Who is the subject of the clause and comes to the games every week is the predicate. The clause modifies Arthur.
In the following sentence , mothers is the subject of the clause, adored is the verb, and whom is the direct object of adored. Again, the clause modifies Arthur.
Arthur, whom the team mothers adored, was asked to be scorekeeper.
Noun clauses
A noun clause functions as a noun in a sentence.
What I want for dinner is a hamburger. (subject of the verb is)
The host told us how he escaped. (direct object of the verb told)
A vacation is what I need most. (complement of the linking verb is)
Give it to whoever arrives first. (object of the preposition to)
Independent clauses
He saw her. The Washingtons hurried home. Free speech has a price. Grammatically complete statements like these are sentences and can stand alone. When they are part of longer sentences, they are referred to as independent (or main) clauses.
Two or more independent clauses can be joined by using coordinating conjunctions ( and, but, for, nor, or, so, and yet) or by using semicolons. The most important thing to remember is that an independent clause can stand alone as a complete sentence.
In the following example, the independent clause is a simple sentence.
Erica brushed her long, black hair.
Next, the coordinating conjunction and joins two independent clauses.
Fernando left, and Erica brushed her long, black hair.
Next, a semicolon joins two independent clauses.
Fernando left; Erica brushed her long, black hair.
All sentences must include at least one independent clause.
After she told Fernando to leave, Erica brushed her long, black hair.
In the previous sentence, the independent clause is preceded by a clause that can't stand alone: After she told Fernando to leave.
Erica brushed her long, black hair while she waited for Fernando to leave.
Here, the independent clause is followed by a clause that can't stand alone: while she waited for Fernando to leave.
Beginning sentences with coordinating conjunctions
Any of the coordinating conjunctions ( and, but, for, nor, or, so, and yet) can be used to join an independent clause to another independent clause. Can you begin a sentence with one of these conjunctions?
No one knew what to do. But everyone agreed that something should be done.
An old rule says that you shouldn't. But beginning a sentence with a coordinating conjunction is acceptable today. (Notice the preceding sentence, for example.) Sometimes beginning a sentence this way creates exactly the effect you want. It separates the clause and yet draws attention to its relationship with the previous clause.
Subordinate clauses
A subordinate clause has a subject and verb but, unlike an independent clause, cannot stand by itself. It depends on something else in the sentence to express a complete thought, which is why it's also called a dependent clause. Some subordinate clauses are introduced by relative pronouns ( who, whom, that, which, what, whose) and some by subordinating conjunctions ( although, because, if, unless, when, etc.). Subordinate clauses function in sentences as adjectives, nouns, and adverbs.
Relative clauses
A relative clause begins with a relative pronoun and functions as an adjective.
In the following sentence, the relative pronoun that is the subject of its clause and won the Pulitzer Prize is the predicate. This clause couldn't stand by itself. Its role in the complete sentence is to modify novel, the subject of the independent clause.
The novel that won the Pulitzer Prize didn't sell well when it was first published.
In the next example , which is the relative pronoun that begins the subordinate clause. Celebrities is the subject of the clause and attended is the verb. In the complete sentence, this clause functions as an adjective describing ceremony.
The ceremony, which several celebrities attended, received widespread media coverage.
Note that in a relative clause, the relative pronoun is sometimes the subject of the clause, as in the following sentence, and sometimes the object, as in the next sentence.
Arthur, who comes to the games every week, offered to be scorekeeper.
Who is the subject of the clause and comes to the games every week is the predicate. The clause modifies Arthur.
In the following sentence , mothers is the subject of the clause, adored is the verb, and whom is the direct object of adored. Again, the clause modifies Arthur.
Arthur, whom the team mothers adored, was asked to be scorekeeper.
Noun clauses
A noun clause functions as a noun in a sentence.
What I want for dinner is a hamburger. (subject of the verb is)
The host told us how he escaped. (direct object of the verb told)
A vacation is what I need most. (complement of the linking verb is)
Give it to whoever arrives first. (object of the preposition to)
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