Complex Sentence

What Is a Complex Sentence? (with Examples)

A complex sentence has one independent clause and at least one dependent clause.

An independent clause (unlike a dependent clause) can stand alone as a sentence.
complex sentence

Examples of Complex Sentences

Below are examples of complex sentences. In each example, the independent clause is shaded. The dependent clause is unshaded.

The Four Types of Sentence Structure

A complex sentence is one of four main sentence structures, all of which are shown below. In these examples, the independent clauses are shaded.

A Complex Sentence. A complex sentence has an independent clause and at least one dependent clause. For example: A Compound Sentence. A compound sentence has at least two independent clauses. For example: A Simple Sentence. A simple sentence has just one independent clause. For example: A Compound-Complex Sentence.  A compound-complex sentence has at least two independent clauses and at least one dependent clause. For example:

A Quick Test

Commas in Complex Sentences

A complex sentence often starts with a clause that states a time, a place, a condition, a frequency, or a fact related to the independent clause. Such clauses are known as adverbial clauses, and they are usually separated from the independent clause with a comma. For example: .


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See Also

What is a sentence? What are independent clauses? What are dependent clauses? What is a compound sentence? What is a simple sentence? Glossary of grammatical terms