How can a sentence run if it can’t even walk? In this BrainPOP movie, Tim and Moby will introduce you to this very easy-to-fix grammatical error! Find out how a run-on sentence happens and what it can look like. You’ll also learn two ways to fix a run-on sentence, including how to do it with punctuation and how to do it with conjunctions. Finally, you’ll learn what kind of sentences can become run-ons and why sentence length isn’t important. So long as your sentence makes sense, run with it!