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
harbor concerns
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'harbor concerns' is correct and usable in written English.
You can use it when you are expressing worries or fears about something. For example, "I harbor concerns about the possible environmental impacts of this project."
✓ 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
14 human-written examples
E.U. officials also harbor concerns about Britain, which has long been extremely wary of submitting its citizens to tax rules overseen by Brussels.
News & Media
NEW JERSEY Voters across the country harbor concerns about progress in Iraq, but are uncomfortable with the notion of breaking faith with the president in wartime.
News & Media
Some refugees themselves harbor concerns that the Iranians will foment armed unrest against the American occupation forces by using the Badr Brigades.
News & Media
European officials also harbor concerns about the extent to which the island country, with its low taxes and lax bank regulation, has become a hub for Russian influence and for money laundering.
News & Media
Also, some administration lawyers harbor concerns that the authorization for the use of military force approved soon after 9/11 does not extend to justify the continued use of force against the Taliban.
News & Media
A person familiar with the machines, who has done contract work for the TSA and therefore spoke on the condition of anonymity, said the agency may harbor concerns about the radiation danger that contributed to this week's decision.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
46 human-written examples
One company's experience in offering an attractive benefit -- the four-day workweek -- to a small group of employees may help explain the doubts that many managers harbor concerning employer of choice.
News & Media
And yet even those who harbor concern mostly refuse to buy into the meme that a progressive city government would inevitably result in a New York of crack dens and subway muggings.
News & Media
If you're harboring concerns about loyalty at your organization, take a look to see that you're holding up your end of the bargain.
News & Media
Team evaluators had harbored concerns over Foster since he came out of Alabama, and he slid to the 31st overall pick owing to concerns about his health and, more pressing, behavioral issues.
News & Media
Despite harboring concerns about militants in Afghanistan for decades, China has been loath to be seen as siding with any party in the conflict, much less to put boots on the ground.
News & Media
Expert writing Tips
Best practice
Use "harbor concerns" to express a lingering or underlying worry, not just a fleeting thought. This implies a deeper, more sustained level of anxiety.
Common error
Avoid using "harbor concerns" for trivial matters. The verb 'harbor' suggests a significant, deeply felt worry, not a minor inconvenience or passing thought.
Source & Trust
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "harbor concerns" functions as a verb phrase, where 'harbor' acts as a transitive verb taking 'concerns' as its object. Ludwig AI indicates that this phrase is grammatically correct and widely used.
Frequent in
News & Media
60%
Science
20%
Formal & Business
20%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "harbor concerns" is a grammatically sound and frequently used phrase for expressing worry or apprehension, particularly in News & Media. Ludwig AI confirms its validity. It's more formal than simpler alternatives like "worry about" and suggests a deeper, more persistent unease. Use it to convey a significant, underlying anxiety, and avoid using it for trivial matters.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
have fears
Directly expresses having anxieties or worries.
worry about
Directly indicates concern and anxiety regarding a specific issue.
have misgivings
Emphasizes a feeling of doubt or apprehension about the outcome or consequences of something.
have reservations
Implies holding back full agreement or support due to certain hesitations.
entertain doubts
Highlights the act of considering and holding uncertainties about something.
feel apprehensive
Highlights a sense of fear or dread about future events.
feel anxious
Focuses on the emotional state of unease and worry.
be wary of
Emphasizes caution and distrust towards something or someone.
be suspicious of
Indicates a lack of trust and a belief that something may be wrong.
take a dim view of
Expresses disapproval or pessimism about something.
FAQs
How can I use "harbor concerns" in a sentence?
You can use "harbor concerns" to express a feeling of worry or unease about something. For example, "Many residents "harbor concerns" about the new development project".
What are some alternatives to saying "harbor concerns"?
Alternatives to "harbor concerns" include "have reservations", "worry about", or "feel apprehensive", depending on the context.
Is it more formal to say "harbor concerns" than "worry about"?
Yes, "harbor concerns" is generally considered more formal and suggests a deeper, more persistent level of worry than simply "worry about".
What's the difference between "harbor concerns" and "express concerns"?
"Harbor concerns" implies holding private worries, while "express concerns" means voicing those worries to others. You can "harbor concerns" without "expressing concerns".
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
4.1/5
Expert rating
Real-world application tested