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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
had reason to
Grammar usage guide and real-world examplesUSAGE SUMMARY
"had reason to" is a correct and usable phrase in written English.
You can use it to indicate that someone has determined something to be true or valid, usually based on facts or evidence. For example: "The police had reason to believe the suspect was guilty of the crime."
✓ Grammatically correct
News & Media
Formal & Business
Encyclopedias
Wiki
Academia
Science
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
They had reason to cheer.
News & Media
Dobranski had reason to decline.
News & Media
Mangini had reason to smile.
News & Media
Spurrier had reason to gloat.
News & Media
I never had reason to".
News & Media
They had reason to be.
News & Media
Kazin had reason to feel self-possessed.
News & Media
The public had reason to believe.
News & Media
Bellow had reason to do so.
News & Media
Luther had reason to be nervous.
Encyclopedias
But he had reason to resist.
News & Media
Expert writing Tips
Best practice
Use "had reason to" to clearly and directly state that someone's action or feeling was based on a logical or understandable cause. This phrase adds credibility to your writing by implying a rational basis for the subject's behavior.
Common error
Avoid using "had reason to" when you are merely speculating or guessing about someone's motives. This phrase implies a known justification, so reserve it for situations where the reason is clear or has been established.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "had reason to" functions as an idiomatic expression used to indicate that a person or entity had a valid justification or cause for a particular action, belief, or feeling. Ludwig AI confirms this with numerous examples showing its usage across various contexts.
Frequent in
News & Media
50%
Formal & Business
15%
Academia
10%
Less common in
Encyclopedias
8%
Wiki
7%
Science
5%
Ludwig's WRAP-UP
In summary, the phrase "had reason to" is a versatile and commonly used expression to indicate a valid justification or cause for an action, belief, or feeling. Ludwig AI analysis, supported by numerous real-world examples, confirms its grammatical correctness and widespread application across various contexts, especially in News & Media. When using this phrase, make sure you provide context on why the subject "had reason to" do something, the more detail you provide, the better and avoid speculative scenarios in writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
had justification to
Replaces "reason" with "justification", emphasizing the validity or rightness of the action.
had cause to
Substitutes "reason" with "cause", highlighting the underlying motive or impetus.
had grounds to
Replaces "reason" with "grounds", suggesting a basis or foundation for the action.
had basis to
Uses "basis" instead of "reason", focusing on the fundamental support or rationale.
had motive to
Emphasizes the motivation behind the action, using "motive" in place of "reason".
was justified in
Highlights the act being defended or warranted.
was warranted in
Similar to "was justified in", but potentially carries a more authoritative or official tone.
had incentive to
Highlights the encouragement or inducement to act, replacing "reason" with "incentive".
had the right to
Focuses on the entitlement or permission to act, rather than the underlying reason.
was entitled to
Similar to "had the right to", emphasizing the justified expectation or claim.
FAQs
How do you use "had reason to" in a sentence?
Use "had reason to" to indicate that someone possessed a valid or understandable justification for their actions or feelings. For example, "She "had reason to be concerned" when the test results came back."
What can I say instead of "had reason to"?
You can use alternatives like "had cause to", "was justified in", or "had grounds to" depending on the context.
Is it better to say "had a reason to" or "had reason to"?
"Had reason to" is generally more concise and idiomatic than "had a reason to". While both are grammatically correct, "had reason to" is often preferred in formal writing.
What's the nuance between "had reason to believe" and "had reason to know"?
"Had reason to believe" suggests a reasonable basis for suspicion or assumption, while "had reason to know" implies access to information that should have led to a certain conclusion. The first is about inference; the second is about awareness. The user "had reason to believe" the suspect was innocent because the evidence was circumstantial, while the accountant "had reason to know" about the embezzlement based on the financial records.
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested