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
had been persisting
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "had been persisting" is correct and usable in written English.
It can be used to describe an ongoing action or state that started in the past and continued up to a certain point in time. Example: "The issue had been persisting for several months before a solution was finally found."
✓ Grammatically correct
Science
News & Media
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
However, it was unknown whether the HPS had been persisting since infancy or was acquired.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
"And they have been persisting in their misrepresentations [or] lies, whatever you want to call them, about their activities there to my face," Mr Kerry told a Senate Committee.
News & Media
The prison service's operating body the National Offender Management Service NOMSS)—on the other hand, has been persisting with a dubious interpretation of the act.
News & Media
In the case of studies regarding homosexuality, there has been persisting evidence of a genetic link with several follow up studies strengthening and building upon the conclusions of the original study.
News & Media
There are big differentials in schooling pattern between these two categories that have been persisted in India.
However, this demanding information is still scarce despite the rising threats of pneumococcal infections have been persisted among the Malaysian populations for many years.
Science
This strategy assumed that children with persistent bilateral OME will require the use of HAs following the confirmation that bilateral OME has been persisted for 3 months.
Science
It was particularly concerning that women had persisted with, or had been advised to persist with, using VTs in ways that caused pain.
Science
Improvement of the results of myocardial perfusion test on EECP therapy had been shown to persist for 3 years [ 30].
Science
A new release paradigm had been born that persists to this day, and this past weekend in particular.
News & Media
Other substances have been used but, despite major efforts by the cork industry and regular announcements that the problem had been eliminated, it persists.
News & Media
Expert writing Tips
Best practice
Use "had been persisting" to describe a situation that started in the past and continued for a duration before another event or point in time. It's particularly useful when emphasizing the duration of the issue.
Common error
Avoid using "had been persisting" when the context requires a simple past tense. For example, instead of saying "The problem had been persisting when I arrived," consider "The problem was persisting when I arrived" if you're not emphasizing the duration prior to your arrival.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "had been persisting" functions as a verb phrase in the past perfect progressive tense. It describes an action or state that was ongoing for a period of time before another point in the past. Ludwig confirms its correct usage.
Frequent in
Science
45%
News & Media
40%
Formal & Business
15%
Less common in
Encyclopedias
0%
Wiki
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "had been persisting" is a grammatically sound past perfect progressive construction used to describe an action or state that continued for a period before another point in the past. As Ludwig AI confirms, it's used correctly across various contexts, especially in scientific and news reporting. While alternatives exist, "had been persisting" distinctly emphasizes duration and context. When writing, use it to show the ongoing nature of a past event leading up to a specific moment, and be cautious of tense errors. Common sources are The New York Times, BBC and The Guardian.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
had continued
Focuses on the simple continuation of an action or state.
had been ongoing
Emphasizes the continuous nature of the process.
had remained
Highlights the state of staying in a particular condition.
had carried on
Suggests persistence despite potential obstacles.
had kept up
Implies maintaining a certain level or pace.
had persevered
Emphasizes effort and determination in continuing.
had endured
Conveys a sense of surviving through difficult circumstances.
had subsisted
Suggests maintaining a minimal level of existence or activity.
had lingered
Implies a slow or reluctant departure or cessation.
had stretched
Focuses on the duration or extent of the continuation.
FAQs
How can I use "had been persisting" in a sentence?
Use "had been persisting" to describe a continuous action in the past that concluded before another point in the past. Example: "The rain "had been persisting" for days before the floods began."
What are some alternatives to "had been persisting"?
You can use alternatives like "had continued", "had been ongoing", or "had remained" depending on the nuance you want to convey.
Is it correct to say "has been persisting" instead of "had been persisting"?
No, "has been persisting" implies the action is continuing into the present. "Had been persisting" refers to an action that started and stopped in the past.
What is the difference between "had been persisting" and "was persisting"?
"Was persisting" describes a continuous action at a specific time in the past. "Had been persisting" emphasizes the duration of the action leading up to a point in the past.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested