# Run-on Sentences

A run-on sentence is “two or more independent clauses that are written as a single sentence but are not connected with appropriate punctuation or conjunctions” (Vosters, 2015). The most common form of run-on sentence is the comma splice. In a comma splice, a comma is used to join two or more independent clauses when actually a period, a semicolon, or a comma plus a coordinating conjunction (i.e., and, but, or, so, for, nor, yet) should be used.

## Example:

Run-on sentence and comma splice:

The study was not conducted in a laboratory, it was a field study.

## How to correct it:

The study was not conducted in a laboratory. It was a field study. (period)

The study was not conducted in a laboratory; it was a field study. (semicolon)

The study was not conducted in a laboratory, for it was a field study. (comma + coordinating conjunction)

## Tip:

Keep most of your sentences short and to the point. When you use long sentences, make sure they are punctuated correctly and clearly say what you really mean.

# Reference

Vosters, M. (2015). Run-On Sentences Are Problematic, They are the Bane of ESL Teachers’ Existence. Retrieved from http://www.cambridge.org/grammarandbeyond/grammar-practice-activities/2015/11/run-on-sentences-are-problematic-they-are-the-bane-of-esl-teachers-existence