Run-on Sentences

What is a Run-on Sentence?

run-on sentence is an improper joining of two or more complete sentences (i.e. independent clauses) without the use of any proper punctuation.

Examples of Run-on Sentences

Some examples of run-on sentences would be the following:

Run-on Sentence: Libby wore high-heeled shoes her feet were sore all day.
Correction: Libby wore high-heeled shoes; her feet were sore all day.
Correction: Libby wore high-heeled shoes. Her feet were sore all day.

Run-on Sentence: I am not too hungry I will just order a salad.
Correction: I am not too hungry; I will just order a salad.
Correction: I am not too hungry. I will just order a salad.

Run-on Sentence: It’s cold outside don’t forget to wear a jacket.
Correction: It’s cold outside; don’t forget to wear a jacket.
Correction: It’s cold outside. Don’t forget to wear a jacket.

Why You Should Avoid Run-on Sentences in Your Writing

Avoiding run-on sentences in your writing is critical.  The following are some reasons why:

Clarity: Run-on sentences blur ideas, making them difficult to understand.

Readability: Well-structured and properly-punctuated sentences are easier to read.

Emphasis: Proper sentence structure ensures important ideas stand out.

Professionalism: Proper grammar and syntax maintains your credibility as a writer.

Avoiding run-on sentences keeps your writing clear, professional, and easy for your readers to engage with it. Other writing errors such as comma splices and sentence fragments are important to avoid as well, so be sure you are familiar with those.

Download a Free Worksheet on Run-on Sentences!

Click the image below to download your free worksheet on run-on sentences!

Run-ons Comma Splices and Fragments Worksheet

Need a grammar program that provides the instruction and grading for you?

GrammarFlip is a comprehensive grammar and writing program designed to individualize student learning while saving ELA teachers time in the classroom. Built by teachers, for teachers.

Start with a free grammar diagnostic assessment and then customize your lessons accordingly.

Explore GrammarFlip for Free!

Explore More GrammarFlip Lessons!