Independent vs Dependent Clauses
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Overview: Understanding independent and dependent clauses will help you write more clearly and avoid common errors such as fragments, run-on sentences, and comma splices. It will also help you to create sentences that are more complex. This will allow you to employ a variety of sentence types and make your writing more interesting.
Independent clauses are independent—they can stand alone. In other words, independent clauses can be complete sentences. They contain a subject and a verb and express a complete thought. With the right punctuation, they can be combined with dependent clauses, phrases, and other independent clauses to create complex and compound sentences.
Examples of independent clauses:
1) Jason is tired.
2) Lolita had coffee with breakfast.
3) Frequent studying helps college students earn better grades.
Dependent Clauses (also called Subordinate Clauses) contain a subject and a verb but do not express a complete thought. Dependent clauses depend on an independent clause to form a complete sentence. They cannot stand alone.
Dependent clauses are easily recognizable because they always begin with a subordinating conjunction that makes the thought incomplete. Here are a few of the most common subordinating conjunctions: after, before, until, when, although, because, if, since, as, in order to, when, while, even though.
Examples of dependent clauses attached to independent clauses:
1) Jason is tired because he only slept for five hours last night.
2) Lolita had coffee with breakfast after she realized she was out of tea.
3) Since frequent studying helps college students earn better grades, students can often be found working together in the library.
Notice that when the dependent clause comes at the beginning of the sentence (example 3), it is followed by a comma. When the dependent clause comes after the independent clause (examples 1 and 2), a comma is not necessary.
Finally, we should briefly discuss Phrases so that you don’t get them confused with clauses. While independent and dependent clauses all contain subjects and verbs, a phrase is missing the subject or verb or both. Therefore, a phrase is never a complete sentence. Notice that none of the examples below contain both a subject and verb (a noun performing an action).
Examples of phrases:
running down the hall
because of their busy schedules
after next week
in the sun behind the barn under some old blankets
Practice: Now look at your own writing. Focus on one paragraph, and locate independent clauses and dependent clauses in that paragraph. Do you have several independent clauses standing alone as simple sentences? Find two simple sentences and combine them by adding a subordinating conjunction to one of them, and add a comma if necessary. Make sure, however, that the sentences in your paragraph are not all the same type. Try putting the dependent clause at the beginning of some sentences and the end of others. Remember that variety makes writing more interesting.