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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
he warns that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "he warns that" is correct and usable in written English.
It can be used when someone is giving a caution or alerting others about a potential danger or issue. Example: "In his latest report, he warns that climate change could have devastating effects on global agriculture."
✓ Grammatically correct
News & Media
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
But he warns that is no guarantee it will ever be made.
News & Media
But he warns that things will get harder.
News & Media
But he warns that it will be costly.
Science & Research
But he warns that Lygo's mission is a hard one.
News & Media
He warns that additional state funding cuts will force the campus to revisit its plans.
In his book, he warns that cornstarch does not thicken well with very acidic fruits.
News & Media
He warns that a UK exit from the EU is more likely than most people realise.
News & Media
He warns that theatres cannot rely on celebrity events to capture audiences.
News & Media
He warns that aerial surveys, the usual way of counting big fauna, are often inaccurate.
News & Media
But he warns that the bills cover very rare situations and could be overused.
News & Media
He warns that free accounts will disappear as banks move customers into expensive package deals.
News & Media
Expert writing Tips
Best practice
When using "he warns that", ensure the warning is followed by a clear and specific explanation of the potential negative consequences to give the warning more weight and credibility.
Common error
Avoid consistently using passive constructions like "it is warned that" as this can weaken the impact of the warning. Instead, attribute the warning directly to a person or source using "he warns that" to maintain clarity and forcefulness.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "he warns that" functions as a reporting clause that introduces a warning or cautionary statement. It attributes the warning to a specific individual, making the warning more credible or authoritative. As shown by Ludwig AI, this construction is commonly found in news and academic contexts.
Frequent in
News & Media
60%
Academia
20%
Science
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "he warns that" is a phrase used to introduce a cautionary statement, attributing it to a specific individual. Ludwig AI confirms its grammatical correctness and common usage, particularly in news, academic, and scientific contexts. While synonyms exist, the choice depends on the nuance and formality desired. When using this phrase, ensure the warning is clear, specific, and supported by evidence to maximize its impact.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
he cautions that
Replaces "warns" with a synonym emphasizing prudence.
he advises that
Substitutes "warns" with a more gentle suggestion of caution.
he cautions against
Focuses the warning on avoiding a specific action or situation.
he points out that
Highlights the act of drawing attention to a potential issue, often implying a warning.
he notes that
A more neutral way of introducing a potential problem, less forceful than a warning.
he alerts to the fact that
Emphasizes the act of bringing something to someone's attention, often a potential danger.
he foresees that
Suggests a prediction of negative consequences.
he anticipates that
Implies expecting a negative outcome and cautioning others.
he highlights that
Emphasizes the importance of a fact or issue, often as a warning.
he emphasizes that
Underlines the significance of a potential problem.
FAQs
How can I use "he warns that" in a sentence?
Use "he warns that" to introduce a statement of caution or potential danger from a specific individual. For example, "The doctor "he warns that" excessive sugar intake can lead to serious health problems".
What are some alternatives to "he warns that"?
You can use alternatives such as "he cautions that", "he advises that", or "he points out that" depending on the context and the level of formality you want to convey. Each alternative slightly alters the tone and emphasis of the warning.
Is it correct to say "he warns of" instead of "he warns that"?
While "he warns of" is grammatically correct, it requires a noun or gerund phrase following "of". For instance, "He warns of potential budget cuts." "He warns that" is followed by a clause, providing more detail. Both are valid, but the sentence structure differs.
What's the difference between "he warns that" and "he suggests that"?
"He warns that" implies a potential danger or negative consequence, while "he suggests that" offers a recommendation or piece of advice. The former is a caution, whereas the latter is a proposal. For instance, "He warns that the bridge is unstable", versus "He suggests that we take an alternative route".
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested