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 previously replicated
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "had been previously replicated" is correct and usable in written English.
It can be used in contexts where you want to indicate that something was replicated at an earlier time before the current reference point. Example: "The experiment had been previously replicated by several researchers, confirming its validity."
✓ Grammatically correct
Science
News & Media
Alternative expressions(1)
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
We observed nominally significant associations between CBC and SNPs in three regions previously associated with breast cancer, 10q26 (FGFR2), 8q24, and 2q35, all of which had been previously replicated in studies of UBC [ 20- 28].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
This week, an impressive collaboration of 270 investigators working for five years published in Science the results of their efforts to replicate 100 important results that had been previously published in three top psychology journals.
News & Media
Both had been previously married.
News & Media
This had been previously given by Bolzano.
Science
Although these two SNPs were among the 30 most significantly associated with breast cancer risk in a prior GWAS [ 7], the associations had not been previously replicated in other study populations [ 31].
Science
Although most prognostic studies published to date claim significant results [ 12, 13], very few translate to clinically useful applications, in part because study findings resulted from chance, methodological biases or the inclusion of risk factors that had not been previously replicated.
In this study, we explored systemic vasculopathy and cardiovascular abnormalities in a transforming growth factor-beta (TGF-β -dependent TGF-β -dependent model TGF-β -dependenteviously shown transgenicte the skin and lung fibrosis of SSc.
Three mutations have been previously identified in replicate populations and increased in representation to greater than 50% of the population by about 100 generations (Notley-McRobb et al. 2003; Ferenci 2008b).
Science
It has been previously reported that active early origins can replicate during a cdc7 arrest (Donaldson et al., 1998; Reynolds et al., 1989).
Science
The number of chips required for specific experiments has been previously reviewed [48] and 2 biological replicate chips were determined to be statistically appropriate.
Science
The construction of a subgenomic cosmid library enriched in early replicating sequences has been previously described [ 23].
Science
Expert writing Tips
Best practice
Use the phrase "had been previously replicated" to clearly indicate that a study, result, or finding has been successfully reproduced or validated before the current context. This strengthens the credibility of your statement.
Common error
Avoid using redundant adverbs or phrases that duplicate the 'previously' aspect. For instance, "had been previously replicated before" is unnecessarily repetitive. Stick to "had been previously replicated" for conciseness.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "had been previously replicated" functions as a passive construction within a past perfect tense, indicating that the action of replicating occurred before a specific time in the past. As Ludwig AI indicates, this construction is indeed correct and usable in written English.
Frequent in
Science
80%
News & Media
10%
Formal & Business
5%
Less common in
Encyclopedias
1%
Wiki
1%
Social Media
1%
Ludwig's WRAP-UP
The phrase "had been previously replicated" is a grammatically correct and usable expression, as affirmed by Ludwig AI. It is a past perfect passive construction used to emphasize that something was replicated before a specific point in the past. The phrase commonly appears in scientific and formal contexts to strengthen the validity of results by referring to prior successful reproductions. While not exceptionally frequent, its presence in academic papers and reputable news sources underscores its reliability. When using this phrase, it's important to avoid redundancies and ensure the tense aligns with the context.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
had been validated earlier
Emphasizes the act of confirming the accuracy or legitimacy at a prior time.
had been confirmed before
Highlights a previous confirmation of something, focusing on establishing certainty.
had been duplicated in the past
Focuses on the act of creating an identical copy or recurrence of something at an earlier point in time.
had undergone prior replication
Stresses the process of replication having occurred at an earlier stage.
had been formerly reproduced
Highlights the reproduction of something in the past, suggesting a formal or documented process.
was previously corroborated
Emphasizes that supporting evidence was provided at an earlier time.
was earlier substantiated
Highlights a previous establishment of proof or evidence.
was formerly attested
Focuses on a past declaration or confirmation as being true or valid.
had already undergone verification
Highlights the completion of a verification process before the current time.
had been checked previously
Stresses that a checking process occurred at a prior time.
FAQs
How can I use "had been previously replicated" in a sentence?
You can use "had been previously replicated" to indicate that a particular finding or result was successfully reproduced in prior studies. For example, "The experiment's outcome was reliable because it "had been previously replicated" by multiple research teams".
What are some alternatives to using "had been previously replicated"?
Some alternatives include "had been validated earlier", "had been confirmed before", or "had been duplicated in the past", depending on the nuance you want to convey.
Is there a difference between "had been replicated" and "had been previously replicated"?
While "had been replicated" indicates that replication occurred, adding "previously" emphasizes that the replication happened before the current context or discussion. The latter provides a stronger sense of prior validation.
Is it grammatically correct to say "has been previously replicated" instead of "had been previously replicated"?
While "has been previously replicated" is grammatically correct, "had been previously replicated" is typically used when referring to an action completed before a specific point in the past. "Has been" implies a more general or ongoing relevance to the present.
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
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested