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
concerned about whether
Grammar usage guide and real-world examplesUSAGE SUMMARY
"concerned about whether" is a grammatically correct and commonly used phrase in written English.
It is used to express worry or hesitation about something uncertain or undecided. Example: She was concerned about whether she would get accepted into her dream college.
✓ Grammatically correct
News & Media
Science
Formal & Business
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 concerned about whether he was ready for that.
News & Media
He was concerned about whether it would be good enough.
News & Media
I'm also concerned about whether anyone will turn up.
News & Media
"Be concerned about whether there is some understanding".
News & Media
I'm concerned about whether they'll be back this summer".
News & Media
We're all concerned about whether the companies are drilling safely and that our watersheds are safe.
News & Media
"A number of networks were concerned about whether their viewers would watch 'The Bible,' " he said.
News & Media
Yet they felt concerned about whether Mr. Samaras was skirting democracy by unilaterally ordering the shutdown.
News & Media
"He just wasn't a person who was concerned about whether he'd be living tomorrow or not".
News & Media
Mr. Vela is also concerned about whether the machine should be replaced.
News & Media
To parents: just as you are concerned about whether your children might be taking drugs, be concerned about whether they are taking a supplement that could cause harm.
News & Media
Expert writing Tips
Best practice
Consider stronger synonyms for "concerned" depending on the degree of worry. Words like "anxious", "apprehensive", or "worried" can add nuance to your writing.
Common error
Avoid using "that" in place of "whether" when expressing concern about a binary outcome. "Whether" correctly introduces alternatives or possibilities, while "that" is used for factual statements. Incorrect: "I am concerned that it will rain." Correct: "I am concerned about whether it will rain."
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "concerned about whether" functions as a prepositional phrase expressing worry, anxiety, or doubt regarding a particular situation or outcome. It introduces a clause that presents two or more possibilities, as confirmed by Ludwig AI and seen across numerous examples.
Frequent in
News & Media
48%
Science
25%
Formal & Business
10%
Less common in
Wiki
5%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "concerned about whether" is a very common and grammatically correct expression used to convey worry or uncertainty about a specific outcome or condition. Ludwig AI confirms its proper usage. Predominantly found in News & Media, Science, and Formal & Business contexts, it serves to express apprehension or doubt. For variations, consider using alternatives like "worried about if" or "unsure about whether", but be mindful of maintaining clarity. When writing, ensure that "whether" is used to introduce alternatives, not "that" to state facts. This phrase, while versatile, benefits from careful contextual application for maximum impact.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
worried about if
Changes the conjunction from 'whether' to 'if', indicating a slight shift towards a conditional concern.
uneasy about if
Indicates a feeling of discomfort regarding a condition, substituting 'concerned' with 'uneasy' and using 'if'.
anxious about if
Replaces 'concerned' with 'anxious', intensifying the feeling of unease and using 'if' instead of 'whether'.
apprehensive about if
Substitutes 'concerned' with 'apprehensive', suggesting a more formal and anticipatory worry with the use of 'if'.
unsure about whether
Shifts the focus to a lack of certainty, replacing 'concerned' with 'unsure' while maintaining 'whether'.
doubtful about if
Replaces 'concerned' with 'doubtful', highlighting a lack of certainty regarding a specific condition with the use of 'if'.
questioning whether
Emphasizes the act of inquiry and doubt, replacing 'concerned' with 'questioning' while retaining 'whether'.
skeptical about if
Emphasizes a questioning attitude toward a condition, replacing 'concerned' with 'skeptical' and employing 'if'.
having doubts about whether
Highlights the presence of reservations, adding 'having doubts' to convey uncertainty about a condition introduced by 'whether'.
pondering if
Replaces 'concerned' with 'pondering', which suggests deeper thought and reflection, and uses 'if' instead of 'whether'.
FAQs
How can I rephrase "concerned about whether" to sound more formal?
For a more formal tone, you could use phrases like "apprehensive regarding if", "doubtful concerning if", or "unsure as to whether". These alternatives provide a heightened sense of formality.
What are some synonyms for "concerned about whether" that convey a stronger sense of worry?
If you want to emphasize a higher degree of worry, consider using phrases such as "anxious about if", "worried about if", or "uneasy about if". These alternatives suggest a greater level of concern.
Is it grammatically correct to use "if" instead of "whether" after "concerned about"?
While "if" can sometimes replace "whether", it's generally more precise to use "whether" when presenting two or more alternatives. Using "if" might sometimes lead to ambiguity. For instance, "I'm concerned about if he'll come" is less clear than "I'm concerned about whether he'll come or not."
What's the difference between "concerned about whether" and "concerned that"?
"Concerned about whether" indicates uncertainty or doubt regarding a possible outcome. For example, "I'm concerned about whether the project will succeed." "Concerned that", on the other hand, suggests worry about a known or suspected fact: "I'm concerned that the project is already behind schedule."
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested