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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
as to whether
Grammar usage guide and real-world examplesUSAGE SUMMARY
"as to whether" is a correct and usable phrase in written English.
It is used to introduce a clause in which there is uncertainty or doubt about the answer. For example, "I'm still undecided as to whether I should accept the job offer."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(18)
regarding whether
concerning whether
whether
with respect to whether
about whether
on the subject of whether
the question of whether
considering whether
inquiring whether
of considering whether
when it comes to whether
in cases where
is it really
in relation to whether
when considering if
as to left
as to how
as to not
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
I was suspicious as to whether it would continue".
News & Media
"It's not a question as to whether they were marginal.
News & Media
He demurs as to whether this is good or bad.
News & Media
In fact I'm sceptical as to whether it will be".
News & Media
Questions arose as to whether they'd made it all up.
News & Media
As to whether there's Arcangel clickbait on theguardian.com?
News & Media
"As to whether I am a pawn, well, maybe.
News & Media
As to whether there'll be more, nothing's confirmed yet.
News & Media
But the debate as to whether to rebuild has passed".
News & Media
Many are sceptical as to whether that is realistic.
News & Media
As to whether either man actually died, I'm unsure.
News & Media
Expert writing Tips
Best practice
Use "as to whether" to introduce a clause that expresses doubt or uncertainty about a particular situation or decision. For example: "The committee is still debating as to whether they should approve the new policy."
Common error
While grammatically correct, "as to whether" can sound overly formal in casual conversation. In informal settings, consider using simpler alternatives like "about whether" or just "whether" for a more natural tone.
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as to whether" functions as a prepositional phrase introducing a subordinate clause that expresses a question or uncertainty. It transforms a statement into an inquiry. As confirmed by Ludwig AI, it introduces clauses where doubt about the answer exists.
Frequent in
Academia
33%
News & Media
48%
Science
10%
Less common in
Formal & Business
6%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "as to whether" is a grammatically sound phrase used to introduce clauses expressing doubt or uncertainty. Ludwig AI confirms its correct usage in written English. While versatile, it's more suited for formal contexts such as news reporting, academic writing, and professional communications. When a more casual tone is appropriate, consider alternatives like "regarding whether" or simply "whether". With a strong presence across diverse authoritative sources, this phrase is a valuable tool for expressing inquiry and speculation with precision.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
regarding whether
Replaces "as to" with "regarding", maintaining a formal tone but slightly altering the emphasis.
concerning whether
Substitutes "as to" with "concerning", providing a similar level of formality and meaning.
in regards to whether
Adds "in regards to" for a slightly more elaborate phrasing, while retaining the core meaning.
with respect to whether
Uses "with respect to" for a more formal and precise tone.
about whether
Simplifies the phrase by using "about", making it less formal but still conveying the same inquiry.
regarding the question of whether
Expands the phrase to explicitly include the term "question", adding emphasis to the uncertainty.
on the subject of whether
Replaces "as to" with "on the subject of", shifting the focus slightly to the topic at hand.
the question of whether
Removes "as to" for a more direct and concise inquiry.
considering whether
Emphasizes the act of contemplation or evaluation regarding a particular matter.
inquiring whether
Directly uses the verb "inquiring" to express the act of questioning.
FAQs
How do I use "as to whether" in a sentence?
"As to whether" introduces a clause expressing doubt or uncertainty. For example, "Scientists are unsure as to whether the new drug will be effective."
What can I say instead of "as to whether"?
Alternatives include "regarding whether", "concerning whether", or simply "whether", depending on the context.
Is it correct to say "as to if" instead of "as to whether"?
While "if" and "whether" are sometimes interchangeable, "as to if" is generally considered less formal and less precise than "as to whether". It's usually better to use "as to whether" for clarity, especially in formal writing.
What's the difference between "as to whether" and simply using "whether"?
"As to whether" adds a degree of formality and emphasis to the uncertainty. Using just "whether" is often sufficient and more concise, but "as to whether" can be useful when you want to highlight the question or doubt.
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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
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested