If you are unsure whether to write occurring or occuring, you are not alone. These two spellings look almost identical, but only one is correct in standard English. The correct spelling is occurring, with two r’s before the ending -ing. Occuring is a common spelling mistake and should not be used in formal or standard writing.
The word occurring comes from the verb occur, which means “to happen” or “to take place.” When -ing is added to a verb ending in a stressed vowel-consonant pattern like occur, the final consonant is doubled. Therefore, occur becomes occurring, not occuring. Understanding this small spelling rule can help you avoid mistakes in schoolwork, emails, essays, and everyday writing.
Quick Answer
Occurring is the correct spelling, while occuring is incorrect. The word occurring is the present participle of occur, meaning “happening” or “taking place.” It has two r’s: o-c-c-u-r-r-i-n-g. Always use occurring in standard English.
Why Do People Confuse Occurring and Occuring?
The confusion usually happens because occur already contains two c’s, so it can feel natural to simply add -ing:
- occur + ing = ❌ occuring
- occur + ing = âś… occurring
However, the final r is doubled when the -ing ending is added.
The correct spelling is:
occur → occurring
Notice the two r’s in occurring.
First Word: Occurring
Occurring is the correct English word.
It is the -ing form of the verb occur. The verb occur means to happen or take place.
Examples of occurring
- A strange event is occurring in the city.
- Changes are occurring very quickly.
- The problem is occurring again.
- Several accidents are occurring on this road.
In each example, occurring describes something that is happening or taking place.
Spelling
Occurring = O-C-C-U-R-R-I-N-G
Remember that it contains two c’s and two r’s.
Second Word: Occuring
Occuring is an incorrect spelling.
It is usually created when someone adds -ing to occur without doubling the final r.
❌ Occuring
âś… Occurring
Although you may see occuring in informal writing, messages, websites, or other user-generated content, it is not the standard spelling.
If you are writing an essay, application, email, report, or other formal text, use occurring.
Occurring vs. Occuring: Comparison Table
| Word | Correct? | Meaning | Example |
| Occurring | âś… Correct | Happening or taking place | The problem is occurring again. |
| Occuring | ❌ Incorrect | No standard English meaning | Do not use this spelling. |
The key difference is simple: occurring has two r’s, while occuring has only one r.
When Should You Use Each?
When to use “occurring”
Use occurring whenever you need the -ing form of occur.
For example:
- The event is occurring now.
- A serious problem is occurring.
- Changes are occurring in the company.
- This issue keeps occurring.
When to use “occuring”
You should not use occuring in standard English.
If you write occuring, replace it with occurring.
10+ Examples of Occurring
Here are some simple examples to make the correct spelling easier to remember:
- The accident is occurring near the main road.
- Several changes are occurring this year.
- The same problem is occurring again.
- What is occurring inside the building?
- Heavy rainfall is occurring across the region.
- A technical problem is occurring on the website.
- These events are occurring more frequently.
- The meeting is occurring at the usual time.
- Something unusual is occurring outside.
- The changes are occurring gradually.
- Similar mistakes are occurring in many documents.
- The issue has been occurring for several days.
Common Mistakes
One of the most common mistakes is writing occuring with only one r.
Incorrect:
The problem is occuring again.
Correct:
The problem is occurring again.
Another mistake is forgetting that the base verb already ends with r and needs another r before -ing.
Remember:
occur + ring = occurring
Not:
occur + ing = occuring
You should also be careful with related forms such as occurred and occurrence.
- occur
- occurring
- occurred
- occurrence
These words all keep the important double r pattern where required.
Memory Trick
A simple way to remember the spelling is:
“Something occurring needs two R’s.”
Think of it like this:
OCCU + RR + ING = OCCURRING
You can also remember:
Occur has one R at the end. Add -ing, and it becomes two R’s.
So:
occur → occurring
American vs. British English
There is no spelling difference between American and British English for this word.
Both varieties use:
âś… occurring
Both use:
❌ occuring
For example:
- American English: The problem is occurring again.
- British English: The problem is occurring again.
The spelling remains the same in both forms of English.
Similar Words
Several words are related to occurring and are useful to learn together.
Occur
Occur means to happen or take place.
Accidents can occur at any time.
Occurred
Occurred is the past form of occur.
The accident occurred yesterday.
Notice that occurred has two r’s.
Occurrence
Occurrence is a noun meaning an event or something that happens.
This is a common occurrence.
Recurring
Recurring means happening repeatedly.
She has a recurring problem with her computer.
Learning these related words can make the spelling of occurring easier to remember.
Final Verdict
Occurring is the correct spelling.
Occuring is a misspelling and should be avoided in standard English.
The easiest way to remember the difference is to focus on the two r’s:
occurring âś…
occuring ❌
Whenever you mean “happening” or “taking place,” use occurring.
Frequently Asked Questions
Is occurring or occuring correct?
Occurring is correct. Occuring is a misspelling. The correct word contains two r’s: occurring.
Why does occurring have two r’s?
The word comes from occur. When -ing is added, the final r is doubled, giving occurring.
Is occuring a word?
No. Occuring is not the standard spelling of the English word. The correct spelling is occurring.
What does occurring mean?
Occurring means happening or taking place.
For example:
Something unusual is occurring outside.
What is the past tense of occur?
The past tense is occurred.
The accident occurred yesterday.
Is occurring spelled with one or two r’s?
Occurring is spelled with two r’s: o-c-c-u-r-r-i-n-g.
Is occurring the same in American and British English?
Yes. Both American and British English use the spelling occurring.
What is the noun form of occurring?
A related noun is occurrence, which means an event or something that happens.
Remember This
Occurring = correct âś…
Occuring = incorrect ❌
The word occurring means happening or taking place. It is spelled with two r’s.
occur → occurring
Once you remember the extra r, this spelling becomes much easier.
Conclusion
The difference between occurring and occuring is simply a spelling issue, but it is an important one. Occurring is the correct standard English spelling, while occuring is a misspelling. Use occurring when you want to describe something that is happening or taking place.
The easiest memory trick is to remember the two r’s: occur → occurring. The same pattern can also help you recognize related words such as occurred and occurrence. Whenever you are unsure, choose occurring with two r’s.
