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
decades long pattern
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "decades long pattern" is not correct in standard written English.
It should be "decades-long pattern" with a hyphen to correctly connect the words. Example: "The study revealed a decades-long pattern of climate change that has affected the region."
⚠ May contain grammatical issues
Alternative expressions(5)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
The budget skipped a $3.1 billion payment to the pension fund, continuing a decade-long pattern Christie had criticized, and did not pay $1.7 billion to schools under the state's formula for education aid".
News & Media
It was also in step with a decades-long pattern, no matter who ran the Garden.
News & Media
And the decades-long pattern of people moving to new, bigger houses as they got new, higher-paying jobs is in retreat.
News & Media
In Ronan Farrow's account of Weinstein's alleged decades-long pattern of cold, angry, vicious, sexually predatory behavior, this side of sexual victimization is particularly palpable in the actress Asia Argento's story.
News & Media
Bruce R. Bartlett, a conservative economist who was a senior Treasury official in the first Bush administration, said that he was troubled by the statistics showing a sharp drop in enforcement, but that he saw them as part of a decades-long pattern of management woes at the agency.
News & Media
His decades-long pattern of trashy, misogynistic talk is well documented - but that hasn't put off his supporters either.
News & Media
This crisis wasn't unique -- it was merely the peak of a decades-long pattern of emergency and response that has been going on in the region.
News & Media
Burman noted that this follows a decades-long pattern in partisan politics Republicans criticize borrowing for the social spending that Democrats like, while Democrats don't put as much pressure on Republicans when they increase the deficit by cutting taxes.
News & Media
Las Vegas mogul Steve Wynn has been accused of a decades-long pattern of sexual harassment and abuse toward workers at his casinos, according to an investigation by The Wall Street Journal.
News & Media
In 2014, 31 current and former UC Berkeley students filed two federal complaints against the university alleging a decades-long pattern of mishandling sexual assault investigations by campus administrators.
News & Media
Less than a month after Lifetime's documentary Surviving R. Kelly aired, exposing the R&B's singer's decades-long pattern of abuse against black women, HBO and the UK's Channel 4 announced Thursday that they will be airing the documentary Leaving Neverland about Michael Jackson's alleged history of molestation.
News & Media
Expert writing Tips
Best practice
Consider using alternative phrases such as "long-term trend" or "historical trend" for better clarity and grammatical correctness.
Common error
Failing to hyphenate "decades-long" when used as a compound adjective is a common mistake. Without the hyphen, it reads as "decades" modifying "long", which doesn't make grammatical sense. Always use "decades-long" before the noun it modifies.
Source & Trust
79%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "decades long pattern" functions as a compound adjective followed by a noun. However, it requires a hyphen to be grammatically correct: "decades-long pattern". Ludwig AI notes that the unhyphenated form is not standard in written English.
Frequent in
News & Media
0%
Science
0%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "decades long pattern" refers to a recurring trend or behavior that has persisted over several decades. However, according to Ludwig AI, the grammatically correct form is "decades-long pattern", with a hyphen. This functions as a compound adjective describing a noun. The unhyphenated version is considered non-standard. When aiming for clarity and grammatical precision, consider alternatives like "long-term trend" or "established pattern". Using the hyphenated form or opting for a suitable alternative ensures your writing remains grammatically sound and easily understood.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
long-term trend
Replaces "decades long pattern" with a more concise and grammatically standard term, focusing on the trend aspect.
historical trend
Substitutes "decades long" with "historical", emphasizing the historical nature of the trend rather than its specific duration.
established pattern
Replaces the time element with an emphasis on the pattern being well-established over time.
enduring trend
Focuses on the lasting quality of the trend, instead of its duration over decades.
long-running theme
Uses "theme" instead of "pattern", suitable when referring to recurring ideas or subjects.
perennial pattern
Replaces "decades long" with "perennial", suggesting a pattern that recurs regularly.
recurring behavior
Shifts from "pattern" to "behavior", appropriate when discussing repeated actions or conduct.
protracted trend
Highlights the extended duration of the trend, similar to "decades long", but more formal.
years-long practice
Focuses on a practice that has persisted over many years, rather than a broader pattern.
time-honored tradition
Emphasizes the tradition aspect and its long history, instead of a simple pattern.
FAQs
How to correctly use "decades long" in a sentence?
The grammatically correct form is "decades-long", with a hyphen. For example, "The decades-long study showed significant results." Alternatively, you can rephrase the sentence using phrases like "long-term trend" or "pattern over decades".
What is the difference between "decades long pattern" and "decades-long pattern"?
The phrase "decades long pattern" is grammatically incorrect without the hyphen. "Decades-long pattern", with a hyphen, is a compound adjective describing the pattern. The hyphen connects "decades" and "long" to act as a single adjective modifying "pattern".
What can I say instead of "decades long pattern"?
You can use alternatives like "long-term trend", "historical trend", or "established pattern" depending on the context.
Is "decades long pattern" grammatically correct?
No, "decades long pattern" is not grammatically correct. The correct form is "decades-long pattern", with a hyphen connecting "decades" and "long" to function as a compound adjective. Consider also the option to use a "longstanding pattern".
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
79%
Authority and reliability
2.8/5
Expert rating
Real-world application tested