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
it sustains that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it sustains that" is not correct in standard written English.
It seems to be an incorrect usage of "sustain," which typically means to support or maintain, rather than to assert or claim. Example: "The report sustains that the new policy will improve efficiency."
⚠ May contain grammatical issues
News & Media
Formal & Business
Science
Alternative expressions(20)
it argues that
it issue that
it reasons that
it claims that
it suggests that
it brings about that
it maintains that
it poses that
it factors that
it consequences that
it issues that
it remains that
it is responsible for that
it people that
it ensures that
it generates that
it triggers that
it causes that
it secures that
it precipitates that
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
2 human-written examples
If it sustains that level of appeal across the board, with more than 25 further territories to come, Saving Private Ryan's worldwide record ($481.8m) for a war film will surely tumble.
News & Media
"The Two Chinatowns" isn't into heavy suspense, but in real-life police procedure there probably isn't that much suspense, and the main virtue of Mr. Mahoney's fine detective story is the strength of the illusion it sustains that things could have happened almost the way they happen in this book.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Britain remains a high-income country, but it only sustains that position through more people putting in more work hours.
News & Media
Whether it can sustain that trajectory is another matter.
News & Media
Whether it can sustain that gangbuster pace is far from clear.
News & Media
Whether it can sustain that momentum is critical to millions of Americans out of work — and perhaps President Obama's re-election chances.
News & Media
Times executives say that of those former P-I subscriptions that have expired, 84 percent have been renewed; time will tell whether it can sustain that rate in the long run.
News & Media
The press believed that the public's legitimate interest in the story was insatiable, and that belief required it to sustain that interest by following every possible development or turn, however implausible or apparently defamatory.
News & Media
Whether it can sustain that level of growth over the long term remains an open question, but for the short term it surely has been impressive.
News & Media
Earlier in the day, the index had moved even higher, to 2582.37, but it could sustain that level through the close.
News & Media
"On the back of the Olympics, we did get a few more supporters, but it's about sustaining that and not letting it fizzle out".
News & Media
Expert writing Tips
Best practice
When aiming for clarity and precision, consider using stronger verbs like "asserts", "maintains", or "claims" instead of "sustains" to convey a more direct meaning in your writing.
Common error
Avoid using "sustain" when you mean to express a simple assertion or claim. "Sustain" typically implies providing support or maintenance, not simply stating a fact or opinion. Choose verbs like "assert", "claim", or "argue" for clearer communication.
Source & Trust
86%
Authority and reliability
2.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it sustains that" functions as a clause connector, attempting to introduce a dependent clause expressing an assertion. However, Ludwig AI indicates that this usage is not standard English. It is more common to use verbs like 'maintains' or 'asserts'.
Frequent in
News & Media
66%
Formal & Business
16%
Science
16%
Less common in
Wiki
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the phrase "it sustains that" appears in some writing, Ludwig AI identifies it as non-standard English. Its intended function is to introduce a claim, but the verb "sustain" is not typically used in this way. For clearer and more grammatically correct writing, consider using alternatives like "it maintains that", "it asserts that", or "it claims that". These options provide a more precise and widely accepted way to express the intended meaning. Although the phrase is mostly used in News & Media contexts, choosing alternative phrasing enhances credibility.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it maintains that
Replaces "sustains" with "maintains", implying a continued assertion or upkeep of an idea.
it asserts that
Substitutes "sustains" with "asserts", focusing on a firm declaration or affirmation.
it claims that
Uses "claims" instead of "sustains", suggesting a declaration that may require further proof.
it holds that
Replaces "sustains" with "holds", conveying the idea of maintaining a particular belief or opinion.
it supports the idea that
Expands the phrase to explicitly include "the idea", emphasizing the supportive role.
it upholds the view that
Emphasizes the act of defending or supporting a particular viewpoint.
it defends the position that
Highlights the act of protecting a specific stance or position.
it provides evidence that
Shifts the focus to presenting supporting evidence rather than a direct assertion.
it reinforces the belief that
Highlights the act of strengthening or confirming a pre-existing belief.
it validates the argument that
Focuses on confirming the validity of a specific argument.
FAQs
What does "it sustains that" mean?
The phrase "it sustains that" is not standard English. A more appropriate way to express a similar idea would be to use phrases such as "it maintains that" or "it asserts that", depending on the intended meaning.
What can I say instead of "it sustains that"?
Depending on the context, you can replace "it sustains that" with alternatives like "it claims that", "it argues that", or "it supports that".
Is "it sustains that" grammatically correct?
According to Ludwig AI, the phrase "it sustains that" is not considered correct in standard written English. It's recommended to use more precise verbs to convey your intended meaning.
Which is more appropriate: "it sustains that" or "it maintains that"?
"It maintains that" is generally more appropriate and grammatically sound than "it sustains that". "Maintains" suggests a continued upholding of a statement or belief, whereas "sustains" is less clear in this context.
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
86%
Authority and reliability
2.5/5
Expert rating
Real-world application tested