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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
has maintained since
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has maintained since" is correct and usable in written English.
You can use it to indicate that something has been kept or continued from a specific point in time up to the present. Example: "The organization has maintained since its founding a commitment to sustainability."
✓ Grammatically correct
News & Media
Encyclopedias
Science
Wiki
Alternative expressions(14)
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
40 human-written examples
He has maintained since then that only victory in the playoffs would make him happy.
News & Media
This is the average poll advantage that the opposition party has maintained since January.
News & Media
Tōgaku is the dominant repertoire, a status it has maintained since the mid-8th century.
Encyclopedias
All four escaped intact, while Richards, an Englishwoman, emerged in second place, a position she has maintained since.
News & Media
Belarus has maintained since the beginning of the standoff that Russia owned $260 million in unpaid transit fees.
News & Media
Juanita, a born-again Christian, attributes her improved health to prayer and to the new regimen she has maintained since she moved.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
19 human-written examples
Both Packer and Murdoch, who were One.Tel non-executive directors, have maintained since the collapse that they were profoundly misled about the telco's financial situation.
News & Media
The Bank of Norway, having maintained since December 2001 the reduction of its interest rate to 6.5%, in July 2002 raised this rate to 7%, the highest in Western Europe.
Encyclopedias
Smuts's faction narrowly won the crucial parliamentary debate, and Hertzog and his followers left the party, many rejoining the National Party faction Malan had maintained since 1934.
Encyclopedias
Ms. Stewart and Mr. Bacanovic had maintained since scrutiny of her trade first began, in early 2002 for the two of them, that they had an existing agreement to sell her ImClone shares if the price fell below $60 a share.
News & Media
The young men and their families have maintained since shortly after the arrests that the videotaped confessions, which were recorded with the young men's parents or guardians present, had been coerced.
News & Media
Expert writing Tips
Best practice
When using "has maintained since", ensure the time reference is clear and specific. For example, "The company has maintained its commitment to sustainability since its founding in 2005" is more effective than "The company has maintained its commitment to sustainability since a long time ago".
Common error
Avoid using "has maintained since" with a period of time. For instance, "has maintained since five years" is grammatically incorrect. Instead, use "has maintained for five years" or "has maintained since [specific date]".
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has maintained since" functions as a present perfect construction, indicating that an action or state began in the past and continues to the present. As Ludwig AI confirms, it's grammatically correct and frequently used. It shows duration and continuity.
Frequent in
News & Media
67%
Encyclopedias
12%
Wiki
10%
Less common in
Science
7%
Formal & Business
4%
Reference
0%
Ludwig's WRAP-UP
In summary, "has maintained since" is a versatile and grammatically correct phrase used to express the continuity of a state, practice, or belief from a specific past time until the present. As Ludwig AI indicates, this phrase is correct and usable in written English. It is particularly common in news and media, but also appears in encyclopedias and other sources. When employing this phrase, clarity about the time reference is essential. Alternative phrasing, such as "has upheld from" or "has kept up since", can provide nuanced meaning, but "has maintained since" remains a direct and effective choice.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
has upheld from
Replaces "maintained" with "upheld", emphasizing the act of supporting or defending something from a specific time.
has kept up since
Uses "kept up" instead of "maintained", suggesting a continued effort to sustain something.
has continued from
Substitutes "maintained" with "continued", highlighting the unbroken sequence of an action or state from a particular time.
has persisted in since
Emphasizes the enduring nature of an action or belief, often in the face of opposition or difficulty.
has sustained from
Focuses on the ongoing support or preservation of something from a specific time.
has observed since
Implies a consistent adherence to a rule, custom, or practice since a given point.
has practiced from
Highlights the ongoing execution of a skill, method, or custom since a specific time.
has retained since
Focuses on preserving or keeping something without loss from a particular time.
has clung to since
Suggests a determined adherence to an idea or belief, often in challenging circumstances.
has embraced from
Highlights an active and enthusiastic adoption of something, continued from a specific time.
FAQs
How can I use "has maintained since" in a sentence?
Use "has maintained since" to describe a state, practice, or belief that has continued uninterrupted from a specific point in the past until now. For example, "The organization "has maintained since" its founding a commitment to environmental protection".
What are some alternatives to "has maintained since"?
You can use alternatives like "has upheld from", "has kept up since", or "has continued from" depending on the context.
Is it correct to say "has been maintaining since"?
While grammatically correct, "has been maintaining since" is less concise than ""has maintained since"". The latter is often preferred for its directness and clarity.
What is the difference between "has maintained since" and "has maintained for"?
"Has maintained since" is used with a specific point in time (e.g., ""has maintained since" 2010"), while "has maintained for" is used with a duration of time (e.g., "has maintained for 10 years").
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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