Run-On Sentences & Fragments Run-On Sentences: A run-on can occur when two or more complete thoughts are joined together without correct punctuation or just throwing in a weak comma. Run-On example: Hiking up a mountain is hard work it is a great accomplishment. Run-On example: Hiking up a mountain is hard work, it is a great accomplishment. This problem can be fixed by: Separating the complete thoughts into two separate sentences: example: Hiking up a mountain is hard work. It is a great accomplishment. Using a comma and one of the FANBOYS (for, and, nor, but, or, yet, so) example: Hiking up a mountain is hard work, and it is a great accomplishment. Fragments: A sentence fragment is a part of a sentence that is missing a subject or a verb or is not a complete thought. Missing a subject Fragment example: Was a disaster. It is a fact that… Fix it by adding a subject: The trip was a disaster. Missing a verb Fragment example: The singers practicing for hours. Fix it by adding a verb: The singers were practicing for hours. Not a complete thought Fragment example: When the bell rang. Fix it by completing the thought: We ran to the bus when the bell rang.