A run-on sentence is a sentence consisting of two or more independent clauses (group of words expressing a complete thought) that is not joined properly with a period, semicolon or joined by a conjunction (like and, but, or) and that, instead, is connected improperly with a comma or without any type of punctuation.
Examples of run-on sentences:
<em>The game will be called off if the storm continues</em><em>, </em><em>the weather is dangerous. </em>
<em>My mother slept in my bother's bed</em><u><em> </em></u><em>he slept on the couch.</em>
