Used and loved by millions
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
knowledge has been
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "knowledge has been" is correct and usable in written English.
It can be used to indicate that knowledge has existed or been acquired over a period of time, often in discussions about learning or understanding. Example: "Knowledge has been a crucial factor in the advancement of technology throughout history."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(2)
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
The Knowledge has been saved, for now.
News & Media
Hollingsworth says: "My biology knowledge has been vital.
News & Media
Knowledge has been a critical resource for supporting business strategies.
Yet little knowledge has been gained regarding effects on reproduction.
Farmers' knowledge has been discounted by too many for too long, says Melaku.
News & Media
That knowledge has been very hard for me to win, but I have won it.
News & Media
Yet again and again this knowledge has been taken as a sign of limitation.
News & Media
Authorial knowledge has been deployed to show us that the past is not knowable.
News & Media
"His vast knowledge has been just invaluable," the 49th's commander, Maj.
News & Media
But so far, this knowledge has been useless in the resolutely two-dimensional digital world.
News & Media
Most are men from the countryside, where noodling knowledge has been passed down through the generations.
News & Media
Expert writing Tips
Best practice
When using "knowledge has been", consider specifying who possesses or benefits from the knowledge to give your statement clarity and relevance.
Common error
Avoid overuse of the passive voice with "knowledge has been" if it obscures the source or agent of the knowledge. Consider rephrasing to highlight who gained or contributed to the knowledge for a more direct and engaging sentence.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "knowledge has been" primarily functions as part of a passive construction, often within the present perfect tense. It indicates that knowledge is the recipient of an action or a state of being. Ludwig AI confirms its correct and usable nature in written English.
Frequent in
Science
45%
News & Media
35%
Formal & Business
10%
Less common in
Encyclopedias
2%
Wiki
2%
Reference
1%
Ludwig's WRAP-UP
In summary, "knowledge has been" is a grammatically correct and frequently used phrase in English, as confirmed by Ludwig AI. It functions primarily within passive constructions, emphasizing the state or outcome of knowledge rather than the actors involved. This phrase is particularly common in scientific, news, and formal business contexts. When using "knowledge has been", it's beneficial to specify the source or beneficiary of the knowledge to provide clarity and relevance. Avoiding overuse of the passive voice can also enhance the impact of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
learning has occurred
Emphasizes the process of acquiring knowledge.
understanding has developed
Focuses on the growth of understanding, rather than just the existence of knowledge.
expertise has grown
Highlights the expansion of skill and expertise, a specialized type of knowledge.
comprehension has improved
Highlights better understanding as a result of increased knowledge.
information has accumulated
Emphasizes the gathering of information, a component of knowledge.
awareness has increased
Indicates a rise in consciousness or perception, often linked to gaining knowledge.
insight has emerged
Suggests the arrival of a new understanding or perspective.
scholarship has advanced
Focuses on the progression of academic knowledge.
wisdom has deepened
Implies a more profound and mature level of knowledge.
data has collected
Focuses on data aggregation, which is the raw material for knowledge.
FAQs
How can I use "knowledge has been" in a sentence?
Use "knowledge has been" to indicate that learning, understanding, or awareness has developed or accumulated over a period of time. For example, "Scientific "knowledge has been" instrumental in developing modern medicine".
What are some alternatives to using "knowledge has been"?
You could use phrases such as "understanding has grown", "information has accumulated", or "expertise has developed" depending on the specific nuance you want to convey.
Is "knowledge has been" grammatically correct?
Yes, "knowledge has been" is grammatically correct. It uses the present perfect passive voice to indicate that knowledge has existed or been developed up to the present time.
What's the difference between "knowledge has been" and "knowledge is"?
"Knowledge has been" implies a process or duration, suggesting that knowledge has accumulated or changed over time. "Knowledge is" states a current condition or attribute of knowledge, such as "Knowledge is power".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested