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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 knowledge about
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they have knowledge about" is correct and usable in written English.
It can be used when discussing someone's understanding or awareness of a particular subject or topic. Example: "The researchers found that they have knowledge about the effects of climate change on local ecosystems."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(4)
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
8 human-written examples
They have knowledge about how far into the book you've reached, when you get bored, which characters you like and those you don't.
News & Media
"I need anyone and everyone, famous or not, if they have knowledge about my daddy's wishes to be cremated to stand up and be heard at this time," Ferrell said.
News & Media
Students need to show that they have knowledge about the college and how to be an asset to that college community.
News & Media
2. In schools, we teach our children "History" (as a required subject), so they have knowledge about the world they live in and how our society came to be what it is.
News & Media
Results indicate that 91% of physicians who received educational outreach and responded to the questionnaire reported that they have knowledge about DCD in comparison with non-participating physicians in the same community among whom only 17.6% reported familiarity with the condition.
Science
See if they have Knowledge about recent developments.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
"The tobacco people were bad guys in that they had knowledge about the dangers of cigarettes," Mr. Motley said.
News & Media
Villagers were invited to participate if they: 1) said they had knowledge about medicinal plants, or 2) were acknowledged by others in the village to have such knowledge.
Science
Nurses' education about HPV vaccination was based on three questions about whether they had received and considered information from (i) governmental agencies and (ii) pharmaceutical companies, and (iii) if they had knowledge about the campaigns against HPV.
Science
In other words, those who stated that they had knowledge about the profession, even if this was not true, more often had a preference for a career in youth health care (Table 2).
Science
Do they truly have knowledge about operating a business that they can bring to the table?
News & Media
Expert writing Tips
Best practice
When aiming for clarity, replace "they have knowledge about" with more specific verbs or adjectives describing the kind of knowledge or expertise involved. For example, instead of saying "they have knowledge about astrophysics", you could say "they understand astrophysics" or "they are experts in astrophysics."
Common error
Avoid using "they have knowledge about" in overly passive constructions. Instead of "the subject is known by them", prefer the more direct "they know the subject".
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they have knowledge about" functions as a descriptor, indicating that a group possesses information or understanding regarding a specific subject. As Ludwig AI suggests, this phrase is grammatically correct. Examples from Ludwig show its use in varied contexts, from academic studies to news reports.
Frequent in
News & Media
37%
Science
47%
Wiki
16%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "they have knowledge about" is a grammatically sound way to express that a group possesses understanding or information on a subject. Ludwig AI confirms its correctness and highlights its presence across diverse fields like news, science, and general information. While alternatives such as "they are knowledgeable about" or "they understand" can provide more precision, the phrase is appropriate for many contexts, holding a neutral register suitable for professional and academic communication. Remember to avoid overuse and consider more specific alternatives to enhance clarity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
they are knowledgeable about
Replaces "have knowledge" with the adjective "knowledgeable", making the sentence more concise.
they possess information regarding
Substitutes "knowledge" with "information" and "about" with "regarding", creating a slightly more formal tone.
they are acquainted with
Uses "acquainted with" to indicate familiarity and understanding, implying a personal connection to the subject.
they are versed in
Replaces "have knowledge about" with "versed in", suggesting deep understanding and experience in a particular area.
they are familiar with
Indicates a basic level of understanding and awareness, which is less intense than "they are knowledgeable about".
they understand
A simpler way to express that someone has knowledge, focusing on comprehension.
they are cognizant of
Uses "cognizant" to highlight their awareness of the topic.
they are informed about
Suggests they have received information, but not necessarily deep understanding.
they are aware of
Indicates a general consciousness or realization regarding the topic.
they have expertise in
Emphasizes a high level of skill and understanding in a specific field.
FAQs
What are some alternatives to "they have knowledge about"?
You can use alternatives like "they are knowledgeable about", "they understand", or "they are familiar with", depending on the context.
How can I make my writing sound more formal when using "they have knowledge about"?
For a more formal tone, consider using phrases such as "they possess information regarding" or "they are versed in" the subject matter.
Is it grammatically correct to use "they have knowledge about"?
Yes, "they have knowledge about" is grammatically correct and understandable. However, depending on the context, more precise alternatives might improve clarity and flow.
How does "they have knowledge about" differ from "they are aware of"?
"They are aware of" indicates a general consciousness or realization, whereas "they have knowledge about" implies a deeper understanding and a collection of facts or information.
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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
4.1/5
Expert rating
Real-world application tested