The concept of run-on sentences is a complex one that has been debated by grammarians and linguists for centuries, with some arguing that they can be used effectively in certain contexts to create a sense of urgency or stream-of-consciousness, while others contend that they are always a mistake and can confuse readers, and although it is generally agreed that a run-on sentence is one in which two or more independent clauses are joined without proper punctuation, such as a period, semicolon, or conjunction, the issue becomes even more complicated when considering the fact that some writers, like William Faulkner and James Joyce, have intentionally used run-on sentences to great literary effect, thereby blurring the line between grammatical correctness and stylistic innovation, and raising important questions about the nature of language and communication.
Understanding Run-on Sentences

A run-on sentence, by definition, is a sentence in which two or more independent clauses, that is, clauses that could stand alone as separate sentences because they contain a subject and a predicate, are joined without proper punctuation, leading to a sentence that is often confusing and difficult to follow, for example, “I went to the store I bought some milk” is a run-on sentence because it contains two independent clauses “I went to the store” and “I bought some milk” that are not properly connected with punctuation or a conjunction.
Types of Run-on Sentences
There are several types of run-on sentences, including the comma splice, which occurs when two independent clauses are joined with a comma without a conjunction, such as “I went to the store, I bought some milk,” and the fused sentence, which occurs when two independent clauses are joined without any punctuation at all, such as “I went to the store I bought some milk,” and understanding these different types is crucial for identifying and correcting run-on sentences in writing.
| Type of Run-on Sentence | Example |
|---|---|
| Comma Splice | "I went to the store, I bought some milk" |
| Fused Sentence | "I went to the store I bought some milk" |

Key Points
- A run-on sentence is a sentence that contains two or more independent clauses not properly connected with punctuation or conjunctions.
- There are different types of run-on sentences, including comma splices and fused sentences.
- Using proper punctuation and conjunctions is crucial for avoiding run-on sentences and ensuring clarity in writing.
- Some writers intentionally use run-on sentences for literary effect, but in general, they can confuse readers and are considered grammatical errors.
- Correcting run-on sentences involves identifying the independent clauses and using appropriate punctuation or conjunctions to connect them logically.
In conclusion, understanding and addressing run-on sentences is vital for effective communication in writing, as they can significantly impact the clarity and readability of a text, and by recognizing the types of run-on sentences and applying the rules of grammar and punctuation, writers can express their ideas more clearly and avoid confusing their readers.
What is a run-on sentence?
+A run-on sentence is a sentence that contains two or more independent clauses that are not properly connected with punctuation or conjunctions, leading to confusion and difficulty in understanding the intended meaning.
How can I avoid run-on sentences in my writing?
+To avoid run-on sentences, use proper punctuation such as periods, semicolons, and commas to separate independent clauses, and use conjunctions like “and,” “but,” and “or” to connect clauses logically and clearly.
Are run-on sentences ever acceptable in writing?
+While run-on sentences are generally considered grammatical errors, some writers intentionally use them in literary contexts to create specific effects, such as urgency or stream-of-consciousness, but in most cases, especially in academic and professional writing, it’s best to avoid them for clarity and readability.