Used and loved by millions
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
be darn useful
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be darn useful" is correct and usable in written English.
It can be used informally to express that something would be very helpful or beneficial. Example: "If we had a new software tool, it would be darn useful for streamlining our workflow."
✓ Grammatically correct
News & Media
Wiki
Alternative expressions(20)
be darn good
be dang sure
be very sure
be darn excellent
be darn cute
be beyond any doubt
rest assured
be completely positive
be absolutely certain
be darn tricky
be darn sure
make no mistake
be fucking sure
be darn lucky
be damned sure
be darn certain
be damn sure
ensure without a doubt
be really beneficial
be bloody sure
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
1 human-written examples
It goes without saying that this would be darn useful.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
"And she must be darn cute because Molly is".
News & Media
Part of the momentum, of course, is because the gender-neutral pronoun is so darn useful.
News & Media
When it's not quietly compiling your phone number and the phone numbers of all your friends, the Facebook Messenger app is pretty darn useful.
News & Media
'I'll be darned.
News & Media
"I'll be darned, Luther, you can read!
News & Media
In the tax world, frivolity can be darned expensive.
News & Media
You're darn tootin'.
News & Media
You're darn right".
News & Media
It's darn cute.
News & Media
"Now there are darn few".
News & Media
Expert writing Tips
Best practice
Use "be darn useful" in informal conversations or writing where a slightly emphatic but not overly strong expression of utility is desired. It's best suited for situations where you want to sound casual and approachable.
Common error
Avoid using "be darn useful" in formal documents, academic papers, or business reports. The informal tone can undermine the seriousness and professionalism required in such contexts. Opt for more formal alternatives like "be extremely helpful" or "be very beneficial".
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be darn useful" functions as a predicate adjective phrase, describing a subject's characteristic of being helpful or beneficial. Ludwig AI confirms its usability in written English.
Frequent in
News & Media
67%
Wiki
33%
Science
0%
Less common in
Formal & Business
0%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "be darn useful" is a grammatically sound and usable expression that conveys the idea of something being particularly helpful or beneficial. As Ludwig AI confirms, it is suitable for informal contexts, such as casual conversations or less formal writing. While the phrase isn't appropriate for formal or academic settings, it serves well to express utility in a friendly, approachable manner. When needing a formal tone, consider using "be extremely helpful" or "be very beneficial".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
be extremely helpful
Replaces the informal "darn" with a more formal "extremely", increasing the level of formality.
be very beneficial
Substitutes "useful" with "beneficial", offering a slightly more sophisticated tone.
be exceptionally helpful
Stresses the helpfulness to an exceptional degree.
be quite advantageous
Replaces "useful" with "advantageous" and "darn" with "quite", resulting in a more formal and strategic connotation.
be remarkably effective
Emphasizes the effectiveness of something, adding a sense of surprise or admiration.
be incredibly valuable
Highlights the value or importance of something, making it seem indispensable.
be particularly practical
Focuses on the practicality of something, suggesting it's well-suited for a specific purpose.
be supremely functional
Emphasizes functionality, making it suitable for technical or engineering contexts.
be eminently suitable
Conveys that something is highly appropriate or fitting for a given situation.
be impressively resourceful
Conveys the idea of utility through resourcefulness, which suggests clever and efficient use.
FAQs
How can I use "be darn useful" in a sentence?
You can use "be darn useful" to describe something that is very helpful or beneficial. For example, "Having a good understanding of the software can "be darn useful" in troubleshooting issues".
What are some alternatives to "be darn useful"?
Alternatives include "be extremely helpful", "be very beneficial", or "be quite advantageous". The choice depends on the level of formality required.
Is "be darn useful" appropriate for formal writing?
No, "be darn useful" is generally considered informal and is better suited for casual conversations or less formal writing. In formal contexts, use more professional alternatives.
What does "be darn useful" exactly mean?
"Be darn useful" means to "be extremely helpful" or beneficial. The word "darn" is a mild intensifier, adding emphasis to the usefulness.
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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
4.1/5
Expert rating
Real-world application tested