2.1 Sentence Writing

Punctuation

One way to correct run-on sentences is to correct the punctuation. For example, adding a period will correct the run-on by creating two separate sentences.

Run-on: There were no seats left, we had to stand in the back.

Correct: There were no seats left. We had to stand in the back.

Using a semicolon between the two complete sentences will also correct the error. A semicolon allows you to keep the two closely related ideas together in one sentence. When you punctuate with a semicolon, make sure that both parts of the sentence are independent clauses. For more information on semicolons, see Section 2.4.2 “Capitalize Proper Nouns”.

Run-on: The accident closed both lanes of traffic we waited an hour for the wreckage to be cleared.

Complete sentence: The accident closed both lanes of traffic; we waited an hour for the wreckage to be cleared.

When you use a semicolon to separate two independent clauses, you may wish to add a transition word to show the connection between the two thoughts. After the semicolon, add the transition word and follow it with a comma. For more information on transition words, see Chapter 8 “The Writing Process: How Do I Begin?”.

Run-on: The project was put on hold we didn’t have time to slow down, so we kept working.

Complete sentence: The project was put on hold; however, we didn’t have time to slow down, so we kept working.

Coordinating Conjunctions

You can also fix run-on sentences by adding a comma and a coordinating conjunction. A coordinating conjunction acts as a link between two independent clauses.