Grammar 10


Run-on Sentences

A run-on sentence is a sentence that has two or more independent clauses that are not spliced together correctly. In other words, a run-on sentence is a mistake.

There are two kinds of run-on sentences:

Fused Sentences

When two clauses are put together without any punctuation between them, the result is a fused sentence.

  • Class began the professor lectured.
  • The professor lectured students took notes.


Comma Splice

When two clauses are connected by only a comma, the result is a comma splice.

  • The professor lectured, students took notes.
  • Class began, the professor lectured, students took notes.


Key Point

Fused sentences and comma splices are two types of run-on sentences. Run-on sentences are grammatically incorrect. They are mistakes, and you should avoid them!

Instructions for the Quiz

For each sentence, determine if the sentence is: