A run‐on sentence is two or more independent clauses joined together with insufficient punctuation. This means that there are two or more complete sentences fused into one sentence. Use a colon: a ...

Example: Still, the sun is slowly getting brighter and hotter ... You have three ways to fix a run-on sentence: ...

Combining two or more sentences without appropriate conjunctions and/or punctuation results in a run-on sentence. Study these examples. My dad came to pick me up this morning my school bag is still in ...