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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
presumed to be
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "presumed to be" is correct and usable in written English.
It can be used when indicating an assumption or belief about something or someone without definitive proof. Example: "The suspect is presumed to be innocent until proven guilty in a court of law."
✓ Grammatically correct
News & Media
Academia
Science
Encyclopedias
Wiki
Alternative expressions(20)
alleged to be
deemed to be
acknowledged to have been
reputed to be
understood to be
thought to be
considered to be
asserted to be
reported to have been
alleged to have been
is assumed to be
claimed to have been
expected to be
suspected to be
said to have been
imagined to be
speculated to be
allegedly was
believed to be
hypothesized to be
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
These patients are presumed to be cured.
Encyclopedias
The lymphoma is presumed to be malignant.
News & Media
New architecture was presumed to be revolutionary.
News & Media
The death is currently presumed to be an accident.
The small objects are presumed to be quarks.
Encyclopedias
If something's bipartisan, it's presumed to be fair and balanced.
News & Media
AO: Until recently, this was presumed to be the case.
News & Media
Traditions are often presumed to be ancient and unalterable.
News & Media
Decreased collagen synthesis is (presumed to be) the result.
In Chimbalanga, the teenager was widely presumed to be bewitched.
News & Media
The victim is presumed to be the man's missing roommate.
News & Media
Expert writing Tips
Best practice
Use "presumed to be" when you want to indicate an assumption that is based on some evidence but lacks definitive proof. This phrase is particularly useful in formal writing or when discussing legal or scientific matters.
Common error
Avoid using "presumed to be" when you have conclusive evidence. If the information is definitively known, use stronger terms like "is" or "has been proven to be" to avoid undermining your statement's credibility.
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "presumed to be" functions as a modal verb construction, indicating a state of belief or assumption that something is likely true but not definitively proven. Ludwig AI examples show its common use in legal, scientific, and general contexts to express non-absolute certainty.
Frequent in
News & Media
28%
Academia
27%
Science
23%
Less common in
Encyclopedias
7%
Wiki
3%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "presumed to be" is a versatile construction used to express an assumption or belief based on available evidence, without asserting absolute certainty. As Ludwig AI confirms, it's grammatically correct and widely applicable across various contexts, from legal and scientific discussions to general news reporting. While alternatives like "assumed to be" or "believed to be" exist, "presumed to be" often carries a slightly more formal or official connotation. When using this phrase, ensure that you're acknowledging the potential for uncertainty and that your assumption is reasonably supported by evidence.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
assumed to be
Simple substitution of "presumed" with "assumed", conveying a similar level of certainty or lack thereof.
believed to be
Replaces "presumed" with "believed", emphasizing the subjective nature of the assessment.
thought to be
Using "thought" instead of "presumed" to indicate a more casual or less formal assessment.
understood to be
Indicates a general understanding or consensus, instead of an individual presumption.
considered to be
Emphasizes a more deliberate or formal evaluation leading to the presumption.
deemed to be
Implies a judgment or official assessment.
inferred to be
Highlights that the conclusion is reached through reasoning from evidence.
surmised to be
Suggests a conjecture based on incomplete information.
suspected to be
Indicates a belief based on limited evidence, often implying a negative connotation.
hypothesized to be
Signals a scientific or exploratory context, indicating a tentative explanation.
FAQs
How can I use "presumed to be" in a sentence?
Use "presumed to be" when you want to suggest something is likely true based on current evidence, but without absolute certainty. For example, "The missing hiker is "presumed to be" in the national park."
What are some alternatives to saying "presumed to be"?
Depending on the context, you could use alternatives like "assumed to be", "believed to be", or "thought to be".
Is there a difference between "assumed to be" and "presumed to be"?
While similar, "presumed to be" often implies a formal or legal context, suggesting a basis in accepted rules or evidence. "Assumed to be" can be more general, indicating a less formal or less substantiated belief.
When is it inappropriate to use the phrase "presumed to be"?
Avoid using "presumed to be" when you have concrete proof or definitive evidence. In such cases, a more assertive phrase like "is" or "has been confirmed" would be more suitable.
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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
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested