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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 was interested
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that was interested" is not correct in standard written English.
It should be "that was interesting" if you are describing something that captures attention or curiosity. Example: "The documentary we watched last night was so captivating that I can confidently say that it was interesting."
⚠ May contain grammatical issues
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
45 human-written examples
"I used to know everyone that was interested in the language.
News & Media
One firm that was interested in IMG, Colony Capital, made a preemptive bid that was rebuffed.
News & Media
Janet was able to find a gallery in Jersey City that was interested in them".
News & Media
"We wanted to make sure it was accessible to anyone in New York that was interested in technology and design," Mr. Pritzker said.
News & Media
Many replies opened with expressions of relief – "I've never encountered anyone or anything that was interested in the general ideas men have about masculinity".
News & Media
Part of Dilfer's problem, according to a team that was interested in him, is that his demeanor is too low-key in interviews.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
15 human-written examples
There are nonprofit groups that are interested.
News & Media
There are a lot of business people that are interested.
News & Media
"We have multiple teams that are interested in playing.
News & Media
All these other directors that were interested took other jobs.
News & Media
Only nodes that are interested get the resource.
Expert writing Tips
Best practice
Avoid using "that was interested". Instead, use phrases like "that was interesting" if you're describing something intriguing, or "who was interested" if referring to someone showing interest.
Common error
Many writers mistakenly use "that was interested" when they mean "that was interesting" or "who was interested". Ensure you're using the correct adjective form (interesting) to describe something that evokes interest, or the correct relative pronoun (who) to refer to someone expressing interest.
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that was interested" functions as a relative clause, attempting to modify a noun by describing a state of being interested. However, Ludwig AI points out that the phrase is grammatically incorrect in standard English. The intended meaning often needs the substitution of "interesting" or a rephrasing using "who was interested".
Frequent in
News & Media
61%
Science
25%
Wiki
8%
Less common in
Formal & Business
5%
Reference
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, while the phrase "that was interested" appears frequently across various sources, Ludwig AI identifies it as grammatically incorrect. The intended meaning often requires using "that was interesting" or "who was interested", depending on whether you're describing something intriguing or referring to someone showing interest. Given its prevalence despite being incorrect, it's crucial to understand the correct alternatives to ensure clear and accurate communication. Always consider the context and aim for grammatical precision to avoid misinterpretations.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
who showed interest
Replaces the passive voice construction with an active voice, specifying who displayed the interest.
that took an interest
Emphasizes the act of actively taking an interest in something.
who were keen on
Uses a more informal expression to indicate enthusiasm or interest.
that found it interesting
Focuses on the subject finding something to be interesting, shifting the emphasis.
that were fascinated by
Indicates a strong level of interest or captivation.
that expressed curiosity
Highlights the expression of curiosity, a form of interest.
who had an inclination towards
Suggests a natural tendency or leaning towards something.
that demonstrated enthusiasm for
Emphasizes the demonstration of enthusiasm, showcasing their interest.
that felt drawn to
Suggests an almost magnetic attraction or interest.
that were intrigued by
Implies a sense of mystery or curiosity that sparked their interest.
FAQs
What's wrong with using "that was interested"?
The phrase "that was interested" is grammatically incorrect. The correct phrase to use when describing something that evokes interest is "that was interesting". Alternatively, if you are referring to a person or entity showing interest, use "who was interested".
What can I say instead of "that was interested" when describing something?
When describing something that evokes interest, use alternatives such as "that was interesting", "that was "engaging"", or "that was "captivating"".
Which is correct, "that was interested" or "who was interested"?
"Who was interested" is grammatically correct when referring to a person or entity displaying interest. "That was interested" is generally incorrect and should be replaced with "that was interesting" when describing something that evokes interest.
How do I use "who was interested" in a sentence?
You can use "who was interested" to describe individuals or groups showing interest in something. For example, "We sent the proposal to everyone "who showed interest" in the project".
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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
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested