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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
could be existed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "could be existed" is not correct in English.
The correct form would be "could exist" or "could have existed," depending on the context. Example: "In theory, a creature from the depths of the ocean could exist that we have yet to discover."
⚠ May contain grammatical issues
Science
News & Media
Alternative expressions(16)
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
Suppose that it could be existed as many Lagrangian as the number of Hamiltonian.
We can suggest that the formation of nanoholes on the rubrene NPs might be due to the aggregation of the pristine NPs during the hydrothermal process, in which the empty spaces between the NPs could be existed and induced the nanoholes [30].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
At the time that they were aware that a problem could have existed, that's when it should have happened.
News & Media
It could have been that: David exists and Lumpl exists but 'David ≠ Lumpl' is true.
Science
Nevertheless, some differences could have existed that were not detected.
Science
After decades of suppression, the notion that different opinions could co-exist is profoundly radical.
News & Media
Malebranche argued that the only being in which such ideas could exist is God.
Science
One thing the Catholic Church could do is to exist more like they do in the parallel universe I described.
News & Media
The whole embarrassing situation could have been avoided if Pinterest existed then.
News & Media
Look at the things that we could've been done if this existed earlier.
News & Media
Where these and other factors that nurture life could exist, isn't it probable, even likely, that some sentient beings would emerge from their version of nutritious ooze?
News & Media
Expert writing Tips
Best practice
Always use the correct grammatical form, which is "could exist" or "could have existed", depending on the intended tense and meaning. Using "could be existed" introduces grammatical errors and confuses the reader.
Common error
Avoid using "could be existed" because it incorrectly combines a modal verb with a passive construction. The correct form utilizes the active voice: "could exist".
Source & Trust
82%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could be existed" attempts to express possibility combined with existence. However, it's grammatically incorrect. Ludwig AI highlights that the accurate form is either "could exist" or "could have existed", depending on the intended timeframe.
Frequent in
Science
34%
News & Media
33%
Academia
13%
Less common in
Formal & Business
7%
Wiki
7%
Encyclopedias
3%
Ludwig's WRAP-UP
In summary, the phrase "could be existed" is grammatically incorrect and should be avoided in formal writing. As Ludwig AI points out, the accurate alternatives are "could exist" (present or future possibility) or "could have existed" (past possibility). While the phrase appears in a variety of sources, including some news and scientific contexts, this seems to be due to errors rather than accepted usage. Always strive for grammatical accuracy to clearly convey your intended meaning.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
could exist
This is the grammatically correct form, expressing a present or future possibility of existence.
could have existed
This expresses a past possibility of existence.
might exist
Similar to "could exist", indicating a possibility.
may exist
Another way to express possibility of existence, slightly more formal than "might exist".
potentially exist
Emphasizes the potential for existence.
possibly exist
Similar to "potentially exist", indicating a chance of existing.
could potentially exist
Combines "could" and "potentially" for emphasis.
it is possible that it exists
A more verbose way to express the possibility of existence.
it is conceivable that it exists
Suggests that existence is within the realm of possibility or imagination.
it is imaginable that it exists
Similar to "conceivable", but focuses on the ability to imagine its existence.
FAQs
What is the correct way to say something might exist?
The correct ways to express that something might exist are to use "could exist", "might exist", or "may exist". The phrase "could be existed" is grammatically incorrect.
Is "could be existed" grammatically correct?
No, "could be existed" is grammatically incorrect. The correct form is "could exist" for present or future possibility, or "could have existed" for past possibility.
What alternatives can I use instead of "could be existed"?
You can use alternatives such as "could exist", "might exist", "may exist", or "potentially exist" depending on the context you want to express.
What's the difference between "could exist" and "could have existed"?
"Could exist" refers to a present or future possibility, while "could have existed" refers to a possibility in the past.
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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
82%
Authority and reliability
1.8/5
Expert rating
Real-world application tested