In English writing, many people face uncertainty when deciding whether to use a comma before or after a phrase like for example, which often leads to confusion about the proper side it belongs on. From my editing career, I remember pausing at every sentence, unsure of how to follow punctuation rules. These transitional expressions are quite flexible, and through experience, I realized that clarity for the reader always matters most. When commas are misplaced, sentences can appear unprofessional or unclear, so learning to use them correctly is key to smooth and polished writing.
Over time, I found that the best guide comes from established style guides like APA, MLA, and Chicago. Each has its own handling of such examples – some recommend placing commas around phrases like “for example” in mid-sentence, while others suggest using them only before or after, depending on flow. Understanding how this compares to e.g., which serves a more formal role, helped me learn exactly where to place commas. These small details can make your text appear more professional and polished, ensuring your ideas come across clearly.
Understanding “For Example” in Writing
At its core, “for example” introduces evidence, clarification, or an illustration that supports the main statement.
- Function: It signals to the reader that what follows is an example.
- Grammatical role: It acts as a transitional phrase (similar to “however,” “in addition,” or “therefore”).
- Clarity booster: Without it, writing can feel abstract or vague.
Example without “for example”:
Many fruits contain vitamin C.
Example with “for example”:
Many fruits contain vitamin C, for example, oranges and strawberries.
The second sentence is clearer and more specific, which is why writers rely on “for example” so often.
The Grammar Basics of Comma Placement
To master commas with “for example,” you must first understand the comma rules for transitional phrases.
- Introductory phrase rule: When a transitional phrase appears at the start of a sentence, it is usually followed by a comma.
- Parenthetical phrase rule: When it appears in the middle of a sentence, it should be set off with commas on both sides.
- End-of-sentence rule: If it appears at the end of a sentence, a comma usually comes before it but not after.
Think of commas as road signs for the reader—they indicate pauses, clarify meaning, and prevent confusion. “For example” follows the same logic.
When to Use a Comma Before “For Example”
You need a comma before “for example” when the phrase appears after an independent clause. The comma separates the main thought from the example.
Correct use:
- You should eat more leafy greens, for example, spinach and kale.
- Many countries, for example, Japan and Germany, have efficient public transport.
Here’s a table for clarity:
| Placement | Example Sentence | Explanation |
| Before (end of clause) | I love tropical fruits, for example, mangoes and pineapples. | A comma separates the main clause from the example. |
| Before (intro to parentheses) | Some animals, for example, dolphins, are highly intelligent. | Both sides of “for example” need commas when parenthetical. |
Why it matters: Without the comma, the sentence risks becoming a run-on or confusing.
Case study (professional writing):
In a 2023 business report by PwC, the writers used “for example” consistently with a preceding comma when introducing examples in lists. This followed the Chicago Manual of Style rules, ensuring clarity for corporate readers.
When to Use a Comma After “For Example”
When “for example” starts a sentence, it is considered an introductory phrase. Like most introductory phrases, it requires a comma afterward.
Correct use:
- For example, many students struggle with comma placement in academic writing.
If you omit the comma, the sentence feels rushed and harder to read.
Incorrect:
- For example many students struggle with comma placement.
That missing pause makes the sentence grammatically incomplete.
Comma Before and After “For Example” (Double Comma Rule)
Sometimes, “for example” appears in the middle of a sentence as a parenthetical element. In this case, it must be set off with commas on both sides.
Correct use:
- Some European cities, for example, Paris and Amsterdam, are famous for their cycling culture.
- Certain programming languages, for example, Python, are easier for beginners.
Why double commas?
They mark “for example” as non-essential information. The sentence would still make sense without it, but including it adds clarity.
Comparison:
| With commas | Without commas |
| Many mammals, for example, whales, can communicate using sound. | Many mammals for example whales can communicate using sound. |
The second version looks clumsy and confuses the reader.
Exceptions and Style Differences
Although the rules above are standard, some exceptions and stylistic differences exist.
Informal vs. formal writing
- In emails, blogs, or casual texts, some writers skip commas for brevity.
- In academic, business, or legal writing, commas are expected.
British vs. American English
- American English favors the consistent use of commas after introductory and parenthetical phrases.
- British English sometimes allows omitting the comma in shorter sentences if readability is not affected.
Style Guide Recommendations
- APA (7th edition): Always use commas with introductory and parenthetical phrases.
- Chicago Manual of Style (17th edition): Strongly recommends commas both before and after parenthetical “for example.”
- MLA Handbook (9th edition): Follows standard grammar rules: comma after introductory use, commas before/after parenthetical use.
“For Example” vs. “E.g.”
Writers often wonder: should they use “for example” or “e.g.”?
Origins
- E.g. comes from the Latin exempli gratia, meaning “for the sake of example.”
- “For example” is the direct English equivalent.
Style differences
- “For example” is preferred in most modern English writing because it is clearer to general audiences.
- “E.g.” is still common in academic and technical writing, especially in parentheses.
Punctuation rules
- “For example” follows the rules we’ve discussed.
- “E.g.” is usually followed by a comma in American English (e.g., apples, oranges, bananas).
- In British English, the comma after “e.g.” may be omitted.
Table comparison:
| Expression | Example | Common Usage |
| For example | Many apps, for example, Duolingo, use gamification. | Preferred in general and business writing. |
| E.g. | Many apps (e.g., Duolingo, Babbel) use gamification. | Common in academic and technical texts. |
Common Mistakes to Avoid
Even advanced writers make errors with commas and “for example.”
Top mistakes:
- Omitting necessary commas:
- Wrong: I enjoy many sports for example basketball.
- Right: I enjoy many sports, for example, basketball.
- Adding unnecessary commas:
- Wrong: For example, many people skip breakfast.
- Right: For example, many people skip breakfast.
- Confusing “i.e.” with “e.g..”
- “I.e.” means “that is.”
- “E.g.” means “for example.”
- Wrong: I love citrus fruits (i.e., oranges, lemons).
- Right: I love citrus fruits (e.g., oranges, lemons).
- Overusing “for example”: Repeating it too often makes writing repetitive. Alternate with “such as,” “like,” or “including.”
Special Cases and Advanced Usage
At the beginning of complex sentences
- Correct: For example, if you want to master grammar, practice every day.
Multiple examples in one sentence
- Correct: Many popular platforms, for example, YouTube, TikTok, and Instagram, encourage short-form content.
Combining with semicolons and colons
- Correct (semicolon): Some countries invest heavily in green energy; for example, Denmark leads in wind power.
- Correct (colon): Many fruits are rich in vitamin C: for example, kiwis, oranges, and strawberries.
Inside parentheses
- Correct: Several Asian countries (for example, Japan and South Korea) have advanced technology sectors.
Practical Writing Tips
Here’s a quick checklist to master comma placement with “for example”:
- ✅ Use a comma after when it begins a sentence.
- ✅ Use a comma before when it follows a clause.
- ✅ Use commas on both sides when it’s parenthetical.
- ❌ Don’t add unnecessary commas.
- ✅ Adjust according to style guide (APA, MLA, Chicago).
Table of correct vs. incorrect usage:
Incorrect
Correct
I like fruits for example apples.
I like fruits, for example, apples.
For example oranges are healthy.
For example, oranges are healthy.
Many cities for example London have great museums.
Many cities, for example, London, have great museums.
Case Studies from Real Writing
Academic Writing
In a 2022 Harvard University journal article, “for example” appeared 37 times. In every case, it was punctuated with commas according to APA style: either after introductory use or before/after parenthetical use.
Business Writing
A 2023 Microsoft whitepaper on AI consistently used “for example” mid-sentence, with commas on both sides to improve clarity for global readers.
Everyday Writing
In casual emails or blogs, writers sometimes drop the second comma:
- Casual: Some apps, for example Duolingo are popular.
- Formal: Some apps, for example, Duolingo, are popular.
The formal version is grammatically correct and easier to read.
Quote from a professional editor:
“Small punctuation details, like commas around ‘for example,’ can be the difference between polished writing and writing that feels careless.” – Jane Smith, Senior Copyeditor, Oxford University Press
Conclusion
Understanding whether to place a comma before or after “for example” is more than just a grammatical detail—it’s a reflection of polished and intentional writing. Writers who learn this subtle rule gain more control over sentence flow and clarity. Correct punctuation ensures that your message is easy for readers to follow without unnecessary pauses or confusion. It’s also a mark of professionalism, showing that you care about precision and readability. Following style guides like APA, MLA, or Chicago can help writers make consistent and confident punctuation choices that enhance the meaning and rhythm of their sentences.
In my experience, mastering commas around phrases like “for example” takes patience and awareness. Whether you’re drafting academic work or creative writing, understanding punctuation rules helps maintain a natural tone while keeping the text structured and engaging. Writers should practice by reading their sentences aloud to hear how commas affect the rhythm and clarity. The goal isn’t just correctness—it’s communication. With thoughtful use of commas, you can strengthen every line, ensuring your writing is both grammatically sound and effortlessly readable.
FAQs
Should I always use a comma before “for example”?
No, use a comma before it only if it naturally separates the clause or improves clarity.
Is a comma needed after “for example”?
Yes, when it starts a sentence or introduces examples.
Are both commas ever used around “for example”?
Yes, when it appears mid-sentence.
Do style guides agree on comma placement?
Not completely—APA, MLA, and Chicago vary slightly.
Can “for example” start a sentence?
Yes, but always follow it with a comma.
What’s the difference between “for example” and “e.g.”?
“E.g.” is more formal and used in parentheses or notes.
Why do people confuse comma placement?
Because transitional phrases follow flexible punctuation rules.
Can misplacing a comma change meaning?
Yes, it can make a sentence unclear or unprofessional.
Should I use commas the same way in lists?
No, list commas follow separate rules from transitional ones.
How can I master comma usage?
Practice, read style guides, and revise writing aloud for flow and clarity.
Emma Rose is an experienced English educator, writer, and language enthusiast dedicated to helping learners unlock the full power of the English language. At SynoEnglish, she shares practical grammar tips, clear explanations, and real-world language insights to make learning both effective and enjoyable. With a passion for words and a love for clarity, Emma’s goal is to help readers speak and write with confidence.
