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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
have occurred
Grammar usage guide and real-world examplesUSAGE SUMMARY
"have occurred" is correct and commonly used in written English.
It is the present perfect tense of the verb "occur," which means to happen or take place. You can use "have occurred" when discussing events that happened in the past but are still relevant or have a connection to the present. For example: - Many changes have occurred in the company since the new CEO took over. - Natural disasters have occurred more frequently in recent years due to climate change. - The team's poor performance can be attributed to several injuries that have occurred throughout the season. - Have any problems occurred during the installation process? - She's been feeling ill all day, so I think something must have occurred to make her sick.
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
have been staged
have been distinguished
have toured
have originated
have been hospitalized
have been carried out
have encouraged
have been deployed
have been downloaded
have materialized
have been conducted
have been concluded
have been institutionalized
have been organised
have transpired
have arisen
have surfaced
have been held
have been offloaded
have been organized
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
Other problems have occurred.
News & Media
Mass protests have occurred.
News & Media
Similar successes have occurred nationwide.
News & Media
One seems to have occurred.
News & Media
It would not have occurred.
News & Media
It should not have occurred.
News & Media
Both stories might have occurred.
News & Media
Similar changes have occurred elsewhere.
News & Media
Still, violent episodes have occurred.
News & Media
Several large wars have occurred.
News & Media
This never should have occurred".
News & Media
Expert writing Tips
Best practice
Use "have occurred" to emphasize that past events have present relevance or consequences. For example, "Several changes "have occurred" since the new policy was implemented, affecting employee morale."
Common error
Avoid using "have occurred" when referring to a single, completed event in the distant past without present relevance. In such cases, the simple past tense ("occurred") is more appropriate. For instance, say "The accident occurred last year" instead of "The accident "has occurred" last year."
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have occurred" functions as a verb phrase in the present perfect tense. It indicates that certain events or actions happened at an unspecified time in the past and are still relevant or have consequences in the present. As Ludwig AI shows, it's a common way to link past events to the current situation.
Frequent in
News & Media
43%
Science
35%
Wiki
8%
Less common in
Formal & Business
5%
Encyclopedias
2%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "have occurred" is a grammatically sound and frequently used present perfect verb phrase. As Ludwig AI confirms, it connects past events to their present relevance. It is commonly found in news, scientific, and formal business contexts. When using the phrase, ensure that the past events still have an impact or relevance to the current situation; otherwise, use the simple past tense. Alternatives like "have happened" or "have taken place" can be used for similar meanings, but "have transpired" adds a more formal tone. Remember that proper tense usage and understanding the context will help you to avoid common errors.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
have happened
Direct synonym, replacing "occurred" with "happened" for a more common term.
have taken place
Replaces "occurred" with "taken place", adding a slightly more formal tone.
have transpired
Substitutes "occurred" with "transpired", which is more formal and suggests a process of unfolding.
have come about
Replaces "occurred" with "come about", indicating how something originated or happened.
have arisen
Uses "arisen" instead of "occurred", suggesting that something has emerged or appeared.
have materialized
Replaces "occurred" with "materialized", implying that something has become real or concrete.
have unfolded
Substitutes "occurred" with "unfolded", suggesting a gradual revelation or development.
have ensued
Uses "ensued" instead of "occurred", meaning that something followed as a consequence.
have resulted
Replaces "occurred" with "resulted", indicating that something is a consequence of a previous action or event.
have developed
Substitutes "occurred" with "developed", suggesting a gradual process of growth or change.
FAQs
How do I use "have occurred" in a sentence?
"Have occurred" is used to describe events that happened in the past but have relevance to the present. For example, "Many changes "have occurred" since the new management took over".
What can I say instead of "have occurred"?
Alternatives include "have happened", "have taken place", or "have transpired" depending on the desired level of formality and the specific nuance you wish to convey.
Which is correct, "have occurred" or "had occurred"?
"Have occurred" is present perfect, indicating past events with present relevance. "Had occurred" is past perfect, indicating events that happened before another point in the past. Choose the tense that accurately reflects the timeline of events.
What's the difference between "have occurred" and "occurred"?
"Occurred" is simple past, describing a completed action in the past. "Have occurred" is present perfect, suggesting that the past action has a connection to the present. For instance, "The incident occurred last week" versus "Several incidents "have occurred" recently, raising concerns".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested