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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
they have explained
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they have explained" is correct and usable in written English.
You can use it when referring to a situation where someone has provided clarification or information about a topic in the past, and the effects of that explanation are still relevant. Example: "After the meeting, I felt more confident in my understanding of the project because they have explained the objectives clearly."
✓ Grammatically correct
News & Media
Science
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
19 human-written examples
They are not, they have explained, political people.
News & Media
They have explained why Americans don't save enough money — and come up with clever ideas to increase savings.
News & Media
Now scientists from NASA's Jet Propulsion Laboratory have reported that they have explained one of the great mysteries of the space age, one that loomed for 30 years as a threat to the credibility of Einsteinian gravity.
News & Media
A merger with Compaq, they have explained, would increase Hewlett-Packard's dependence on the low-profit personal computer business while diminishing the role of the company's crown jewel, its printer division.
News & Media
Even though they have explained things as they went along, my understanding of it all has been little better than that of Veep's permanently baffled director of communications Mike McLintock, who ended the show with a six-year-old "baby" strapped to him.
News & Media
UK researchers believe they have explained why some families are incredibly vulnerable to bowel cancer.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
39 human-written examples
And for some homeless kids, a school is all the stability they have," explains Barbara James, Project Director for the Texas Homeless Education Office THEOO).
News & Media
Of course, there are scientists who thought they had explained the variability.
News & Media
Since then, they've explained the criteria and I was like, 'Oh, OK!
News & Media
He laughed when I asked him if they had explained they were going to the soccer finals.
News & Media
"What they've explained to us is that they're on par with the Sabres and Bills," Anthopoulos said.
News & Media
Expert writing Tips
Best practice
Use "they have explained" when you want to emphasize that a group has already provided details or reasons, and this explanation is relevant to the current context. For instance, "The scientists believe they have explained the phenomenon, but further research is needed."
Common error
Avoid using "they have explained" when the subject is singular. It's grammatically incorrect. Instead, use "he/she has explained". For example, instead of "The researcher they have explained the method", use "The researcher has explained the method".
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they have explained" functions as a verb phrase in the present perfect tense. It indicates that a group has performed the action of explaining something at some point in the past, and this action has relevance to the present situation. Ludwig AI confirms this.
Frequent in
News & Media
40%
Science
40%
Formal & Business
10%
Less common in
Wiki
6%
Encyclopedias
2%
Reference
2%
Ludwig's WRAP-UP
The phrase "they have explained" is a verb phrase in the present perfect tense, used to indicate that a group has clarified or provided details regarding a particular subject or situation, with relevance to the present moment. According to Ludwig AI, the phrase is grammatically correct and finds common usage across diverse contexts such as news media and scientific publications. While not exceptionally frequent, it remains a useful and appropriate expression. When using this phrase, ensure that the subject is indeed plural and avoid misusing it with singular subjects. Alternatives such as "they clarified" or "they detailed" may offer nuanced options for expressing similar meanings.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
they clarified
Focuses on making something clearer and easier to understand.
they detailed
Emphasizes a thorough and comprehensive account.
they elucidated
Highlights making something clearer by providing a thorough explanation.
they expounded
Suggests explaining something in great detail and at length.
they interpreted
Focuses on explaining the meaning of something.
they justified
Emphasizes providing reasons or evidence to support something.
they accounted for
Highlights providing an explanation or reason for something.
they rationalized
Suggests providing a logical explanation, sometimes to excuse something.
they specified
Focuses on stating something explicitly or in detail.
they illustrated
Emphasizes explaining something by using examples or visuals.
FAQs
How can I use "they have explained" in a sentence?
Use "they have explained" when referring to a situation where a group has provided clarification or information. For example, "They have explained the new policy in detail, so everyone understands the changes".
What are some alternatives to "they have explained"?
You can use alternatives such as "they clarified", "they detailed", or "they elucidated" depending on the specific context and nuance you want to convey.
Is "they have explained" formal or informal?
"They have explained" is suitable for both formal and informal contexts. Its appropriateness depends more on the surrounding vocabulary and sentence structure than the phrase itself.
What's the difference between "they explained" and "they have explained"?
"They explained" refers to a completed action in the past, while "they have explained" indicates an action completed at some point in the past that has relevance to the present. For instance, "They explained the rules yesterday" vs. "They have explained the rules, so we should be able to start the game now".
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested