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
long time used
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "long time used" is not correct in standard written English.
It seems to be an attempt to convey something that has been in use for a long time, but the structure is awkward. Example: "This method has been long used in traditional medicine."
⚠ May contain grammatical issues
Science
News & Media
Wiki
Alternative expressions(3)
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
4 human-written examples
It turns out rural Georgians have for a long time used wild hops to cure their breads.
News & Media
Rigid inorganic filler has been long time used as a reinforcement agent for polymer materials.
Science
Tong Ling was born in 1963, worked in a state-owned tree farm for a long time, used to work as a typist, and was secretary of the Communist Youth League.
When investigating agreement between observers researchers have for a long time used kappa and other chance adjusted measures with a commonly used scale to interpret kappa derived by Landis and Koch in 1977[17].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Because of coloring, however, she's drawn again for the first time in a long time, using Johanna Basford's books, which include blank spots where the author encourages people to add their own elements to scenes.
News & Media
For a long time, using a motherboard's on-board resources was considered… uncivilized.
News & Media
Wellbore stability has been studied for a long time using mainly two quite different approaches.
Science
The evaluation of the field enhancement at the analyte location, and the reflectance FWHM at the peak, takes a quite long time using dedicated computers.
Science
Facebook has been building out its search products for a long time, using Bing as an extra layer to provide results beyond the Interest Graph in an effort to avoid letting rival Google into the system.
News & Media
However, no study has discussed the causal factors involved in the dead bodies left for long time using the huge data of forensic medicine through several years.
Science
However, the side effects of ASA, such as serious gastrointestinal damage, have limited the long time using of this classic drug [ 8].
Science
Expert writing Tips
Best practice
When describing something that has been in use for an extended period, prefer the phrasing "has been used for a long time" or "used for a long time" for clarity and grammatical correctness.
Common error
Avoid using the phrase "long time used" as it inverts the proper word order and tense usage. Instead, clarify the subject and verb using a more conventional structure, like "This method has been used for a long time."
Source & Trust
81%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "long time used" functions as a descriptive element, attempting to modify a noun or concept by indicating a duration of usage. However, as noted by Ludwig AI, the word order and grammatical structure are incorrect in standard English.
Frequent in
Science
40%
News & Media
30%
Wiki
30%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the phrase "long time used" aims to convey that something has been utilized for an extended duration, it is grammatically incorrect and not recommended for formal English. Ludwig AI indicates that standard alternatives such as "used for a long time" or "has been used for a long time" are preferable. While examples can be found across various domains like science, news, and wikis, it's important to prioritize clarity and grammatical correctness in writing. Opt for more precise alternatives to ensure effective communication, particularly in professional and academic contexts.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
used for a long time
This is a more grammatically correct and common way to express that something has been in use for an extended duration.
has been used for a long time
This alternative uses the present perfect tense to emphasize the duration of use.
long-used
This option uses a hyphenated adjective for a more concise description.
widely used for many years
This alternative focuses on the widespread nature and extended duration of use.
customary for an extended period
This phrase introduces a sense of tradition and routine over a prolonged duration.
established practice for a long duration
This option highlights that it is an established and ongoing action.
historically employed for an extended time
This version emphasizes the historical aspect of the usage.
routinely applied over many years
This option indicates a standard process carried out regularly.
traditionally utilized for a long period
This shows a common method that has happened for a considerable time.
for a considerable period, it has been applied
This alternative inverts the sentence structure to emphasize the duration first.
FAQs
What's a grammatically sound alternative to "long time used"?
The phrase "used for a long time" is a more grammatically correct and common substitute.
How can I rephrase "long time used" to emphasize the duration of the usage?
You can say "has been used for a long time" to explicitly focus on the extended duration.
Is "long time used" appropriate for formal writing?
No, it is better to opt for phrases like "long-used" or "widely used for many years" in formal contexts to maintain clarity and grammatical accuracy.
In what contexts might I encounter the phrase "long time used"?
While not technically correct, you might encounter this phrase in informal settings or when the speaker's first language isn't English. However, it is recommended to avoid it in your own writing.
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
81%
Authority and reliability
2.8/5
Expert rating
Real-world application tested