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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 to be maintained
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is to be maintained" is correct and usable in written English.
It can be used in contexts where you want to indicate that something should be kept or preserved in a certain state or condition. Example: "The integrity of the data is to be maintained throughout the research process."
✓ Grammatically correct
News & Media
Science
Academia
Formal & Business
Wiki
Science & Research
Alternative expressions(20)
should be preserved
must be upheld
should be upheld
must be preserved
needs to be sustained
warrants safeguarding
should be continued
is to be redeveloped
is to be creative
is to be eliminated
is to be spread
is to be named
is to be commended
is to be determined
is to be forbidden
is to be cultivated
is to be released
is to be expected
is to be occupied
is to be scrapped
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
59 human-written examples
Is the flow of goods and services from world markets that is to be maintained, or is it the current or some future level of consumption?
Science
The central green, planted with fruit trees, is to be maintained by a homeowners' association.
News & Media
America's ascendancy, if it is to be maintained and extended, requires a constant readiness to fight.
News & Media
"If progress is to be maintained then the international community must back the government.
News & Media
All the core countries, notably Germany, must support it if market confidence is to be maintained.
News & Media
Implant longevity is crucial if the clinical success of THA is to be maintained.
'If Britain's present boom is to be maintained,' declared Wolverhampton's local newspaper in 1956, 'more workers must be found.
News & Media
The public must be informed of as much information as possible if trust is to be maintained".
News & Media
The figure would represent "unprecedented" efficiency gains if the quality of care is to be maintained, say the MPs.
News & Media
This occasional re-administration of active drug is essential if the conditioning effect is to be maintained.
News & Media
If security is to be maintained, then development policy is going to be just as important as counter-terrorism".
News & Media
Expert writing Tips
Best practice
When using "is to be maintained", ensure the context clearly defines what "it" refers to. This avoids ambiguity and strengthens the clarity of your writing.
Common error
Avoid using "is to be maintained" in simple sentences where more direct phrasing would be clearer and more concise. For instance, instead of "The garden is to be maintained by the homeowner", consider "The homeowner will maintain the garden".
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is to be maintained" functions as a passive infinitive construction, indicating a requirement or obligation for something to be kept in a particular condition. As Ludwig AI indicates, this phrase is grammatically correct and frequently used.
Frequent in
News & Media
32%
Science
30%
Academia
20%
Less common in
Formal & Business
13%
Wiki
3%
Science & Research
2%
Ludwig's WRAP-UP
In summary, the phrase "is to be maintained" is a grammatically sound and frequently employed passive infinitive construction used to convey the need to keep something in a specified condition. As shown by Ludwig, it appears across various contexts, particularly in news, scientific, and academic domains, indicating a formal or neutral tone. When writing, ensure the subject requiring maintenance is clearly identified and consider more direct phrasing if a simpler sentence structure better suits your needs. Understanding these nuances will allow you to leverage "is to be maintained" effectively in your communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
should be upheld
Replaces "is to be maintained" with a modal verb indicating obligation and "upheld", implying a more active effort to preserve something.
must be preserved
Emphasizes the necessity of keeping something in its current condition, using "must" to denote a strong requirement.
needs to be sustained
Focuses on the continuation of something over time, highlighting the ongoing effort required.
has to be conserved
Highlights the idea of protecting something from depletion or harm.
requires preservation
Shifts the focus to the necessity of the act of preserving, rather than the state of being maintained.
demands upkeep
Emphasizes the need for continuous care and effort to keep something in good condition.
necessitates conservation
Highlights the importance of careful management and protection of resources.
warrants safeguarding
Implies that something is valuable and deserves to be protected from harm or loss.
should be continued
Focuses on the ongoing nature of the activity or state, suggesting it should not be stopped.
must be perpetuated
Emphasizes the intention to ensure something continues indefinitely into the future.
FAQs
How can I use "is to be maintained" in a sentence?
The phrase "is to be maintained" indicates something needs to be kept in a specific condition. For example, "If public confidence "is to be maintained", transparency is crucial."
What are some alternatives to "is to be maintained"?
You can use alternatives like "should be preserved", "must be upheld", or "needs to be sustained" depending on the context and the level of emphasis you want to convey.
Is "is to be maintained" formal or informal?
The phrase "is to be maintained" carries a neutral to formal tone, suitable for professional, academic, and news contexts. Simpler alternatives might be preferable in very informal settings.
What's the difference between "is to be maintained" and "should be maintained"?
"Is to be maintained" often implies a plan or requirement already in place, while "should be maintained" suggests a recommendation or desirable action. Context determines which best fits your intended meaning.
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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
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested