Comma Period

Comma Period: Usage, Importance, and Examples

Comma period, also known as a comma splice, is a grammar error where a comma is used to connect two independent clauses. In standard English, the comma cannot join complete sentences, and it is essential to know how and when to use it correctly. Comma period errors can make your writing unclear, and it is necessary to understand the rules of punctuations.

The comma period error is common in academic writing, business writing, and creative writing. It shows a lack of understanding of grammar rules and can make your work look unprofessional. Therefore, mastering the correct use of the comma period will make you stand out as a writer, and it is an essential aspect of writing.

Types of comma period errors

The comma period error can occur in different ways, including:

1. Using a comma to connect two complete sentences

Incorrect: The sky is blue, we should go for a walk.

Correct: The sky is blue. We should go for a walk.

2. Using a comma to separate items in a list of clauses

Incorrect: She likes to read books, watch movies, and writing poetry.

Correct: She likes to read books, watch movies, and write poetry.

3. Using a comma to separate a subject from its verb.

Incorrect: The dog, ran in the park.

Correct: The dog ran in the park.

4. Using a comma to separate two independent clauses without a conjunction.

Incorrect: The game started, the players had a great time.

Correct: The game started, and the players had a great time.

Importance of using proper punctuation

Punctuations are essential in writing since they help clarify the writer’s intended meaning. Using improper punctuation can change the intended meaning of the sentence, making it hard for the reader to understand the intended message. Proper punctuation can help you communicate effectively, and it shows your level of professionalism as a writer. In addition, some types of writings such as academic write-ups, reports, and legal documents require proper comma usage and other punctuations.

How to Correct Comma Period Errors

1. Joining independent clauses with a conjunction

One way of correcting the comma period error is to join independent clauses using conjunctions such as ‘and,’ ‘but,’ and ‘or.’ For instance;

Incorrect: John went to the store, he forgot his wallet.

Correct: John went to the store, but he forgot his wallet.

2. Using a semicolon

Semicolons can be used to join two independent clauses that do not use a conjunction. The semicolon is an alternative to using a period. For instance;

Incorrect: The sun is shining, the sky is clear.

Correct: The sun is shining; the sky is clear.

3. Rewriting the sentence

In some cases, you might have to rephrase the sentence to correct the comma period error. The rephrased sentence should be clear and properly punctuated.

Incorrect: The rain stopped, the soccer game began.

Correct: The soccer game began when the rain stopped.

Examples of Correct Comma Usage

1. Use a comma after an introductory phrase

Example: On Friday, I will visit my grandparents.

2. Use a comma to separate items in a list

Example: I love to read books, listen to music, and travel.

3. Use a comma to set off non-essential information

Example: My dog, who loves to play fetch, won the contest.

4. Use a comma before conjunctions when joining two independent clauses

Example: She studied hard for the test, but she still failed.


Comma period errors are a common mistake in writing, and understanding proper punctuation is necessary for clear communication. Punctuation helps to convey meaning and tone in your writing, and using proper punctuation shows your level of professionalism as a writer. By following the correct punctuation rules, you can communicate your intended message effectively, and your writing will be easier to read and understand. So make sure to avoid comma period errors and always double-check your work before submitting it.