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
time useful
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "time useful" is not correct in standard written English.
It may be intended to convey the idea of time being beneficial or advantageous, but it lacks clarity and proper grammatical structure. Example: "Finding a way to make our time useful during the meeting is essential for productivity."
⚠ May contain grammatical issues
Science
News & Media
Wiki
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
12 human-written examples
Meanwhile, in order to simplify the needed parameters of frame production, we enumerate the original parameters in advance, such as system bandwidth and fast Fourier transform (FFT) sizes, and then, we calculate the derived parameters by using the original parameters, such as symbol time, useful transmission time, and the amount of symbol time of frame.
It took a wonky idea, conceived by geeky people, and made it much better — made it, for the first time, useful.
News & Media
Using this established record, geologists have been able to piece together events over the past 635 million years, or about one-eighth of Earth history, during which time useful fossils have been abundant.
Encyclopedias
Despite these shortcomings it is anticipated that over time useful results will be gained.
Science
Also, qualitative considerations and a quantitative description to evaluate feasibility of new drug delivery strategies are provided, and some indicators, such as the emptying time, useful to optimize the drug-eluting stent design are discussed.
To our knowledge, we provide for the first time useful information in order to correctly interpret and design PAA-coated magnetite based biomedical applications in which the target tissues may have different viscosities and different capacity to retain low or high concentrations of NP inside, yielding unexpected results.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
47 human-written examples
Despite the fact that limiting relations between theories may be singular in this way, it is (at times) useful and appropriate to think of physical theories as forming a hierarchy related by length or energy scales.
Science
The classical methods and models of exact sciences proved to be many times useful and inspiring in tackling social science problems.
Science
After all he is your first critic and at times useful.
Wiki
Still, the focused work time is useful for testing concepts and building prototypes, he says.
News & Media
He added: "Stressing or moving about rapidly to find/don the oxygen mask chews into the time of useful consciousness".
News & Media
Expert writing Tips
Best practice
When aiming for clarity, replace "time useful" with more conventional phrases such as "valuable time" or "time well spent" to ensure your writing is grammatically sound and easily understood.
Common error
Avoid directly translating adjective-noun structures from other languages into English. Instead of saying "time useful", consider more natural English constructions like "useful period" or "time well spent".
Source & Trust
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "time useful" functions as a noun phrase where "time" is the noun and "useful" acts as a modifier. However, it's grammatically unconventional in English. As Ludwig AI points out, this phrasing is not correct in standard written English.
Frequent in
Science
50%
News & Media
30%
Wiki
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the phrase "time useful" appears in various sources, it is considered grammatically incorrect in standard English. Ludwig AI identifies it as such, advising against its use in formal writing. Instead, consider alternatives like "useful time", "valuable time", or "time well spent" for improved clarity and correctness. Its occurrence is uncommon, and while it appears in scientific and news contexts, its non-standard form might detract from a professional tone. Opting for grammatically sound alternatives will ensure effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
beneficial time
Directly replaces "useful" with "beneficial", indicating a positive impact or advantage.
time well spent
Expresses that the time was used effectively and enjoyably.
valuable time
Replaces the adjective "useful" with "valuable", suggesting the time is precious or important.
productive time
Substitutes "useful" with "productive", emphasizing the effectiveness of the time spent.
effective time
Focuses on the efficiency and impact of the time used.
appropriate time
Similar to "suitable time", but emphasizes the correctness and relevance of the timing.
advantageous time
Highlights the favorable or beneficial nature of the time.
suitable time
Highlights that the time is appropriate or fitting for a specific purpose.
fruitful time
Indicates that the time resulted in positive outcomes or results.
opportune moment
Shifts the focus to a specific point in time that is particularly suitable or advantageous.
FAQs
What are some alternatives to the phrase "time useful"?
Consider using phrases such as "valuable time", "productive time", or "time well spent" for better clarity and grammatical correctness.
Is the phrase "time useful" grammatically correct in English?
No, the phrase "time useful" is not considered grammatically correct in standard written English. It's better to use phrases like "useful time", "valuable time", or "time well spent".
How can I use "time useful" correctly in a sentence?
While "time useful" isn't standard, you might rephrase your sentence to use alternatives like "This is a useful time to reflect on the past" or "We need to make our time well spent during the conference".
What's the difference between "time useful" and "useful time"?
"Useful time" is the grammatically correct phrase in English, where the adjective "useful" properly modifies the noun "time". "Time useful" reverses this order and is not standard English.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested