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
dates to be challenged
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "dates to be challenged" is correct and usable in written English.
It can be used when referring to specific dates or timelines that are subject to dispute or questioning. Example: "The historical accuracy of the events is based on dates to be challenged by further research."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(2)
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
Hutchinson acknowledged, however, that he expects the dates to be challenged.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
She won't behave like those girly submissive women you've dated in the past - be prepared to be challenged to an arm wrestle or a shooting contest, and she may actually beat you!
Wiki
Cavities surrounding the core of the GABA binding pocket were predicted by molecular interaction field calculations and docking studies in a α1β2γ2 GABAA receptor homology model, and were confirmed by affinities of substituted analogues of 3. The tight steric requirements observed for the remarkably few GABAAR agonists reported to date is challenged by our findings.
Most described having a strong internal professional drive to stay up-to-date and appreciated being challenged to build their skills and become more efficient.
Science
Both systematic reviews suggest there are limited studies that demonstrate the effectiveness of aromatherapy and the majority of studies to date have been challenged by severe methodological limitations.
For newer patents, calculating the earliest effective filing date can itself be challenging where there are multiple family members from which the patent claims priority.
News & Media
This assumption has left PRRT with 177Lu-octreotate with an upper limit of activity per cycle of 7.4 GBq that until date has not been challenged; to the best of our knowledge, there are no reports of treatment with higher activities.
Science
Historians disagree about the invention of the bicycle, and many dates are challenged.
Encyclopedias
That expiration date is being challenged in the courts, but it could be re-instituted at any point in the coming weeks and months.
News & Media
However, when managing a large stock of aging assets, maintaining robust and up-to-date data records can be challenging.
Science
To date, it is challenging for traditional census datasets to support real-time analysis with detailed spatial and temporal granularity.
Science
Expert writing Tips
Best practice
When using the phrase "dates to be challenged", ensure the context clearly indicates who might challenge the dates and on what grounds.
Common error
Avoid using "dates to be challenged" without specifying the basis for the potential challenge. Adding context clarifies why the dates might be questioned, avoiding ambiguity.
Source & Trust
80%
Authority and reliability
4.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "dates to be challenged" functions as a noun phrase modified by a passive infinitive. It identifies specific times or periods that are expected to face opposition or questioning. Ludwig AI confirms its validity.
Frequent in
News & Media
33%
Science
33%
Wiki
33%
Less common in
Encyclopedias
0%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "dates to be challenged" is used to indicate that specific dates are likely to be questioned or disputed. While Ludwig AI confirms its validity, it is a relatively rare phrase, primarily appearing in news, science and wiki contexts. When using this phrase, ensure clarity about the reason for the potential challenge. Consider alternatives such as "dates in dispute" or "dates under scrutiny" to convey a similar meaning. Providing clear context when using the phrase will help to prevent ambiguity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
dates subject to challenge
Replaces the passive voice "to be challenged" with the adjective "subject to", maintaining a formal tone.
dates to be contested
Similar to the original phrase, but uses "contested" instead of "challenged", indicating a more active disagreement.
dates in dispute
Directly states the dates are contested, removing the passive construction.
dates liable to be disputed
Substitutes "challenged" with "disputed", emphasizing disagreement, and "liable to be" replaces "to be challenged".
dates that may be disputed
Uses a more explicit phrasing to convey the possibility of disagreement.
dates open to question
Replaces "challenged" with "open to question", indicating uncertainty about the validity of the dates.
dates under scrutiny
Changes the focus to the act of examination rather than the potential for dispute, highlighting a detailed review process.
dates awaiting confirmation
Shifts the emphasis to the need for verification, implying the dates are not yet finalized or certain.
dates yet to be verified
Focuses on the lack of verification, suggesting the dates are still unconfirmed.
dates under appeal
Indicates a formal challenge or legal process related to the dates.
FAQs
What does it mean when we say that "dates to be challenged"?
It means that the accuracy or validity of those dates is likely to be questioned or disputed, potentially requiring further evidence or justification.
How can I use the phrase "dates to be challenged" in a sentence?
You can use it to indicate that certain dates are not definitively established and may be subject to debate, such as "The historical accuracy of the events is based on "dates to be challenged" by further research."
What are some alternative phrases for "dates to be challenged"?
Alternatives include "dates in dispute", "dates under scrutiny", or "dates awaiting confirmation", depending on the specific nuance you want to convey.
In what situations is it appropriate to use the phrase "dates to be challenged"?
It's suitable in contexts where historical facts are being analyzed, legal timelines are being examined, or project deadlines are uncertain and subject to possible revisions.
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
80%
Authority and reliability
4.2/5
Expert rating
Real-world application tested