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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
is not materialized
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is not materialized" is not correct in standard English; the correct form would be "has not materialized." You can use it when discussing something that has not come to fruition or been realized, often in a business or project context.
Example: "The proposal for the new project has not materialized due to budget constraints."
⚠ May contain grammatical issues
Science
News & Media
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
1 human-written examples
Although a list of molecules may be displayed using the #SearchLine function (see Methods section) in volatile namespace, such a list cannot be utilized for further full-text searches because the list is not materialized as the page body.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
After 27 Rd6, Anand might have tried 27... Rc2, yet after 28 Rg4 Kh7 29 Rf6 Ng8 30 Rf5 Rc6 31 Rfg5 Nh6 32 Rh5, Black's counterplay is not materializing.
News & Media
Roughly $165 million of Arizona's plan to close a $3 billion shortfall is not materializing.
News & Media
The report sent jitters through the technology industry amid growing concerns that a broad recovery is not materializing as quickly as many executives had predicted.
News & Media
It is imperative that you do not waste either on a fundraising process that is not materializing. .
News & Media
The Commission says the business potential for cross-border online trade is definitely there but is not materializing the way it expected.
News & Media
Unsold car inventories hit a four-year high, producers are defaulting on commodity orders as the demand for their products is not materializing; commercial and residential markets began to resemble their counterparts on the coasts in the U.S.; airlines started losing money as global travel declined; and the list goes on and on.
News & Media
AAN PEI echoed her comments, saying the change doesn't go far enough: "Unfortunately, this commitment is not materializing into local, safe access to legal abortion on PEI".
News & Media
"But if these hopes are not materialized, the bubble bursts and the consequences are disastrous".
News & Media
One may disagree with this column, but it was not materialized out of thin air; it was thoroughly reported.
News & Media
Nevertheless, that intention was not materialized.
Expert writing Tips
Best practice
Avoid using the phrase "is not materialized". Instead, opt for the grammatically correct "has not materialized" or other alternatives like "failed to materialize".
Common error
The phrase "is not materialized" often arises from confusion about the correct tense and verb form. Ensure you use the present perfect tense ("has not materialized") when referring to something that was expected to happen but did not.
Source & Trust
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is not materialized" functions as a negative declarative statement, indicating the absence of something expected. Ludwig suggests that this phrase is not correct in standard English, recommending "has not materialized" instead. This reinforces the need for correct tense usage in academic and formal writing.
Frequent in
News & Media
33%
Science
33%
Formal & Business
33%
Less common in
Wiki
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "is not materialized" is generally considered grammatically incorrect. Ludwig AI suggests that "has not materialized" is the more appropriate form. Although examples can be found across different contexts, the expression is not frequent. For formal writing, consider alternatives such as "has not come to fruition" or "failed to materialize" to clearly convey that something expected did not happen.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
has not materialized
Uses the correct tense and form of the verb 'materialize'.
did not materialize
Expresses the non-occurrence in the past.
has not come to fruition
Emphasizes the lack of successful development or completion.
failed to materialize
Highlights the failure of something to become real or actual.
has not been realized
Focuses on the lack of actualization or achievement.
has not eventuated
A more formal way to say something has not happened.
remains unfulfilled
Indicates that a hope or promise has not been satisfied.
has not taken place
Simply states that an event has not occurred.
has not occurred
A straightforward way of saying something hasn't happened.
never came to pass
Emphasizes the complete absence of an event or realization.
FAQs
What is the correct way to say something didn't happen as expected?
Instead of saying "is not materialized", it's better to say "has not materialized", "failed to materialize", or "did not happen".
What can I say instead of "is not materialized" in a formal context?
In formal writing, replace "is not materialized" with phrases like "has not come to fruition", "has not been realized", or "has not eventuated".
Is "is not materialized" grammatically correct?
No, "is not materialized" "is not grammatically correct". The correct form is "has not materialized", which uses the present perfect tense.
Which is correct, "is not materialized" or "has not materialized"?
"Has not materialized" is the correct phrase. "Is not materialized" incorrectly uses the present tense of "to be" with the past participle of "materialize".
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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
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested