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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
that concerned
Grammar usage guide and real-world examplesUSAGE SUMMARY
"that concerned" is a correct and usable phrase in written English.
It is used to express worry or concern about something or someone, as in the example sentence: I was concerned about the weather forecast, but my friend assured me that everything would turn out alright. That concerned me less.
✓ Grammatically correct
News & Media
Science
Science & Research
Alternative expressions(3)
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
That concerned me.
News & Media
That concerned her.
News & Media
That concerned Kristina Kulkarni, 18, of Princeton.
News & Media
But the issues that concerned us before still do".
News & Media
The only thing that concerned us was the dancing.
News & Media
"Two of the main issues that concerned me were: 1.
News & Media
Jimenez has a 4.46 E.R.A. this season, continuing a downward trend that concerned some teams.
News & Media
That concerned another paralysed patient, Matt Nagle.
News & Media
Nonetheless, the issues that concerned him as a postdoc still strongly engage his interest.
Science & Research
We did however exclude studies that concerned 'pain during acute bronchitis' (figure 1).
Science
Patients discussed in detail the aspects of their physical and psychological recovery that concerned them most.
Science
Expert writing Tips
Best practice
Use "that concerned" to introduce a clause specifying the object or subject of worry or interest in formal writing.
Common error
Avoid using "that concerned" when you mean "who were concerned." The phrase is best used to specify what was the subject of concern, not the people experiencing it.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that concerned" functions as a relative pronoun introducing a relative clause. This clause modifies a noun, specifying which particular thing or person is being referred to. Ludwig AI indicates that is a usable phrase.
Frequent in
News & Media
34%
Science
30%
Science & Research
12%
Less common in
Formal & Business
8%
Encyclopedias
4%
News & Media - Sports
4%
Ludwig's WRAP-UP
In summary, "that concerned" is a grammatically sound and frequently used phrase that introduces a relative clause, specifying the subject of worry or interest. According to Ludwig AI, it is usable in English writing. Predominantly found in news, scientific, and research contexts, it maintains a neutral tone suitable for both formal and general usage. When writing, be mindful to use it to specify what was the subject of concern, not the people who were worried. For alternatives, consider "that worried", "that troubled", or "that bothered" to fine-tune your message.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that worried
Focuses specifically on the emotional aspect of worry, whereas "that concerned" can imply a broader range of feelings.
that troubled
Implies a deeper sense of unease or disturbance than "that concerned".
that bothered
Suggests a more direct and possibly irritating effect, which might not always be conveyed by "that concerned".
that pertained to
Shifts the focus to direct relevance, omitting the aspect of worry or concern.
that related to
Emphasizes a connection or association, which might not always imply concern.
that affected
Highlights the impact or influence something had, instead of the feeling of concern.
that involved
Suggests participation or inclusion, which differs from being concerned about something.
that interested
Indicates curiosity or attention, not necessarily worry or concern.
that mattered to
Emphasizes importance and significance, which may or may not involve concern.
that was about
Is a more generic way to refer to a topic. Omits the sense of concern.
FAQs
How can I use "that concerned" in a sentence?
Use "that concerned" to introduce a relative clause specifying what caused worry or interest. For example, "The issue "that concerned us" was the lack of funding".
What's a synonym for "that concerned"?
Alternatives include "that worried", "that troubled", or "that bothered", depending on the specific nuance you want to convey.
Is it better to use "that concerned" or "which concerned"?
In most contexts, "that concerned" and "which concerned" are interchangeable. "That" is generally preferred for restrictive clauses (essential to the sentence's meaning), while "which" is used for non-restrictive clauses (adding extra information).
What is the difference between "that concerned" and "those concerned"?
"That concerned" refers to the thing or issue that caused worry. "Those concerned" refers to the people who were worried or affected.
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested