A run-on sentence exists when two or more independent clauses are not joined with the proper conjunction or punctuation. A conjunction is a part of speech that connects sentences or two independent clauses. (because, and, so, however, to name a few)

A run on sentence is considered poor grammar. Despite being called a run-on sentence, it has nothing to do with length. Run-on sentences can be short. The only thing that determines a run-on sentence is when more than one independent clause exists without the proper tools to combine them.

Run-on Sentence Examples:

• I have to go to the store I need to buy milk.
  • Here, there are two independent clauses with no punctuation. This is an example of a fused sentence.
  • Clause One: I have to go to the store.
  • Clause Two: I need to buy milk.
  • There is no conjunction or punctuation between these clauses; this makes it a run-on sentence.
• I have to go to the store because I need to buy some milk.

• We are going to the game, then we are going to dinner.
  • Here, there are two independent clauses joined by a comma. This is an example of a comma splice.
  • Clause One: We are going to the game.
  • Clause Two: Then we are going to the game.
  • Just like the previous example, there is no conjunction or punctuation between these clauses; this makes it a run-on sentence.
• We are going to the game and then we are going to dinner.

In summary, a run-on sentence:

• is improper grammar
• includes two independent clauses incorrectly joined
• needs to be fixed
• can be fixed several ways