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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
could have reason
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "could have reason" is correct and usable in written English.
It can be used when suggesting that someone might have a justification or explanation for their actions or beliefs. Example: "She could have reason to be upset, given the circumstances surrounding the event."
✓ Grammatically correct
News & Media
Science
Alternative expressions(4)
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
What exactly such a full-blooded sense would be in case of time travel, and whether one could have reason to believe it to obtain, remain to us obscure.
Science
Campbell and her other non-dog-owning roommate could have reason to sue the dog owner in small claims court for the amount of money lost due to the damage the dog created, says Roberson.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
West could have reasoned that if his partner held the diamond ace, South must have the club ace.
News & Media
It also makes me wish that I were their publicist, so that I could have reasons to talk to them on the phone all day, drive them to interviews, and ask for their advice in picking out Edible Arrangements baskets for all of the lovely Music Editors who have written about them, and given them publicity for the past handful of years.
News & Media
Americans, though, could still have reason to be concerned about future drug costs.
News & Media
How could he have reasoned that his cold-blooded missive would give her the warm fuzzies?
News & Media
In Savulescu (2001), it was argued that we could even have reasons to have a disabled child, such as a child with Down syndrome, to make a political statement or further a political goal.
One could have a reason to X without being under any requirement to X, as when that reason to X is outweighed.
Science
There could have been reason to expect less.
News & Media
Although even I could have no reason to object to a small person of indeterminate gender taking a large wooden sports bat to a soup tureen.
News & Media
Although they concede that we could have good reason to think that particular theories have empirically equivalent rivals, this must be established case-by-case rather than by any general argument or presumption.
Science
Expert writing Tips
Best practice
When using "could have reason", ensure the context clearly indicates the potential justification or basis being referred to. Avoid vagueness by specifying what that reason might be, even if only hypothetically.
Common error
Avoid using "could have reason" when the situation warrants a stronger assertion. This phrase suggests possibility, not definite justification. If there's concrete evidence, use a more affirmative expression.
Source & Trust
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could have reason" functions as a modal phrase expressing possibility or potentiality. It suggests that there might be a valid explanation or justification for a particular situation or action, as supported by examples found by Ludwig.
Frequent in
News & Media
50%
Science
50%
Formal & Business
0%
Less common in
Academia
0%
Wiki
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "could have reason" is a grammatically sound phrase that serves to express a potential justification or underlying cause. Ludwig AI suggests its primary function is to offer tentative explanations rather than definitive statements. While appearing in both news and scientific contexts, it maintains a neutral register and its usage is considered uncommon. When employing this phrase, clarity is key; always ensure that the context provides sufficient hints regarding the possible reason, even if it remains speculative.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
might have a rationale
Replaces "could" with "might" for a slightly weaker possibility, and "reason" with the more formal "rationale".
may have justification
Substitutes "could" with "may", indicating possibility, and "reason" with "justification", emphasizing validity.
might be justified
Shifts from having a reason to being in a state of justification.
may be warranted
Replaces the entire phrase with a more formal expression implying that something is justified or necessary.
might have grounds
Substitutes "reason" with "grounds", indicating a basis or foundation for an action or belief.
may have cause
Replaces "reason" with "cause", focusing on the motivation or impetus behind an action.
might be understandable
Shifts the focus to the comprehensibility of the action or feeling.
may be explainable
Focuses on the potential for providing an explanation or justification.
might have an excuse
Suggests a less formal or potentially weaker justification.
may have a motive
Focuses specifically on the underlying motivation for an action.
FAQs
How can I use "could have reason" in a sentence?
Use "could have reason" to suggest a possible justification or explanation for someone's actions or feelings. For example, "She "could have reason" to be angry if she was misled".
What's the difference between "could have reason" and "might have reason"?
Both phrases suggest a possibility, but "could have reason" implies a slightly stronger likelihood than "might have reason". They are often interchangeable, but "could" suggests more potential justification.
What can I say instead of "could have reason"?
You can use alternatives like "might have justification", "may be warranted", or "might have grounds" depending on the context.
Is it better to say "could have a reason" or "could have reason"?
Both are grammatically correct, but "could have a reason" is often used when the reason is singular or unspecified. "Could have reason" is used more generally to suggest there might be some underlying justification.
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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
4.3/5
Expert rating
Real-world application tested