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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
the central question is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "the central question is" is correct and usable in written English.
You can use it when introducing the main issue or topic that will be discussed or analyzed in a text. Example: "In this essay, the central question is whether technology enhances or hinders human communication."
✓ Grammatically correct
Science
News & Media
Academia
Alternative expressions(20)
the key question is
the main issue is
the primary concern is
the crucial point is
what really matters is
the heart of the matter is
the key issue is
the main inquiry is
then the question arises
now the question arises
thus the question arises
so the question arises
the pertinent question is
we must ask ourselves
now the question remains
the issue at hand is
this begs the question
however the question arises
it raises the question of
a relevant question is
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
60 human-written examples
The central question is: Is it possible to use ECUs qualified for gasoline car in electric cars without any reliability risks?
Science
But the central question is: What knowledge?
News & Media
The central question is therefore considering the appropriate modeling tool.
Science
And the central question is, is this guy right?
News & Media
The central question is for whom the book is intended.
News & Media
The central question is the right size of penalty.
News & Media
As acquaculture surges, the central question is starting to change.
News & Media
The central question is whether ad networks have an incentive to aggressively combat fraud.
Academia
Thus, the central question is no longer whether there will be review of punitive-compensatory ratios.
Academia
The central question is, how is wealth created under capitalism at the micro level?
Academia
The central question is whether Lehane's deals can amount to more than that.
News & Media
Expert writing Tips
Best practice
Use "the central question is" to clearly introduce the main inquiry or problem your writing addresses, ensuring the reader understands the focus of your discussion.
Common error
Avoid starting consecutive sentences or paragraphs with "the central question is". Vary your sentence structure and use synonyms like "the key issue", or rephrase to maintain reader engagement.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the central question is" serves as an introductory phrase. Its primary grammatical function is to highlight and introduce the most important question or inquiry that will be addressed in the subsequent discussion, as shown by Ludwig.
Frequent in
News & Media
35%
Science
33%
Academia
26%
Less common in
Formal & Business
3%
Encyclopedias
1%
Wiki
1%
Ludwig's WRAP-UP
In summary, "the central question is" is a versatile phrase used to introduce the most important question or issue in a discussion. As indicated by Ludwig, it's grammatically correct and sees frequent use across various domains, particularly in news, scientific, and academic contexts. While perfectly acceptable, consider diversifying your writing by using related phrases like "the key question is" or "the main issue is" to avoid redundancy. Remember, the key to impactful writing lies in clarity and precision.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
the key question is
Replaces "central" with "key", emphasizing the importance of the question.
the main issue is
Shifts from a question to an issue, highlighting the primary problem.
the primary concern is
Focuses on the main worry or point of concern.
the crucial point is
Emphasizes the decisiveness or critical nature of the point.
the fundamental problem is
Highlights the underlying or foundational problem.
what really matters is
Shifts the focus to what is truly significant.
the core issue revolves around
Indicates that the central issue is a focal point.
the heart of the matter is
Uses a more figurative expression to denote the essential aspect.
at the end of the day, the question is
Adds a sense of finality or ultimate consideration to the question.
the underlying question is
Highlights a question that might not be immediately apparent.
FAQs
How can I use "the central question is" in a sentence?
Use "the central question is" to introduce the main issue or problem that your text will explore. For example, "The central question is: how can we effectively reduce carbon emissions?"
What can I say instead of "the central question is"?
You can use alternatives like "the key question is", "the main issue is", or "the primary concern is" depending on the specific context.
Is it too formal to use "the central question is" in casual writing?
While "the central question is" is appropriate for formal writing, it may sound too structured for casual contexts. In informal settings, consider using phrases like "what it really comes down to is" or "the big question is".
What's the difference between "the central question is" and "the question is"?
"The central question is" emphasizes the primary or most important question among others. Simply stating "the question is" is more general and doesn't necessarily highlight a core issue.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested