Many English learners confuse occurring vs occuring because both spellings seem possible at first glance.
However, only one form follows standard English spelling rules. Using the wrong version can create spelling mistakes in essays, emails, academic writing, and professional communication.
If you are unsure whether to write occurring or occuring, this guide explains the correct spelling, grammar rule, examples, and common mistakes clearly.
Quick Answer
- Occurring = correct spelling
- Occuring = incorrect spelling
Correct Example
- A strange noise is occurring outside.
Incorrect Example
- A strange noise is occuring outside.
What Does Occurring Mean?
Occurring is the present participle form of the verb occur. It means:
- happening
- taking place
- existing or appearing
Examples
- The meeting is occurring tomorrow morning.
- Changes are occurring rapidly.
- The event kept occurring every year.
- Scientists studied naturally occurring minerals.
Common Phrases
- currently occurring
- naturally occurring
- frequently occurring
- occurring event
- occurring problem
Why “Occurring” Uses Double R
English grammar often doubles the final consonant before adding:
- -ing
when a verb ends with:
- vowel + consonant
Examples
| Base Verb | Correct -ing Form |
|---|---|
| occur | occurring |
| run | running |
| begin | beginning |
| refer | referring |
Because occur ends with:
- vowel + consonant
the final “r” doubles before adding “-ing.”
Why “Occuring” Is Incorrect
The spelling occuring breaks standard English spelling rules. Native English speakers consider it a spelling mistake.
Incorrect
- Problems are occuring everywhere.
Correct
- Problems are occurring everywhere.
Occurring vs Occuring Comparison Table
| Word | Correct? | Meaning |
|---|---|---|
| Occurring | Yes | Happening or taking place |
| Occuring | No | Incorrect spelling |
Common Mistakes
Incorrect
- The issue is occuring repeatedly.
Correct
- The issue is occurring repeatedly.
Incorrect
- A festival is occuring nearby.
Correct
- A festival is occurring nearby.
American vs British English
There is no spelling difference between American and British English here. Both use:
- occurring
The spelling occuring is incorrect everywhere in standard English.
Easy Trick to Remember
Think about the base word:
- occur
It already ends with:
- double “r”
So when adding “-ing,” keep both:
- occurring
Simple Memory Tip
- occur → occurring
- refer → referring
- begin → beginning
FAQs
Is occuring a real word?
No. It is considered a spelling mistake in standard English.
Which spelling is correct?
Occurring is the correct spelling.
Why does occurring use double r?
English doubles the final consonant before adding “-ing” in many verbs.
What does occurring mean?
It means happening or taking place.
Do British and American English spell occurring differently?
No. Both use the same spelling.
Final Thought
Now you clearly understand that occurring is the correct spelling, while occuring is simply a common spelling mistake.
Because of this easy grammar rule, you can avoid errors and make your writing look more accurate and professional.
As you continue practicing English, you will naturally remember to keep the double “r” when writing occurring. So, instead of guessing the spelling, you can confidently use the correct form every time.

Lucas Liam is a skilled writer with a passion for research based and reader friendly content. His work covers multiple topics, including technology and self improvement. Lucas is a valued author at NickHubs.com, delivering clear and helpful articles.