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
were categorised as
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "were categorised as" is correct and usable in written English.
It can be used when describing how items, individuals, or concepts have been classified or grouped into specific categories in the past. Example: "The species were categorised as endangered due to their declining population numbers."
✓ Grammatically correct
Science
News & Media
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
They were categorised as endangered in 2008 as their numbers plummeted by 50% in 24 years.
News & Media
Other variables were categorised as appear in Table 1.
Science
Studies were categorised as either measurement, descriptive or intervention.
They were categorised as children with specific language impairment (SLI).
A further 3.5 million people were categorised as "at-risk" gamblers.
News & Media
Some 19% were categorised as "mixed or undecided" and 9% were designated as adopting no position.
News & Media
Some were categorised as "enemies of the revolution", others as "landowners" or "rogues".
News & Media
In one year alone, 12,000 families were categorised as homeless.
News & Media
Every email I've ever sent, that's been sent to me, including the ones I deleted or were categorised as spam.
News & Media
A further 35 were categorised as "good".
News & Media
2095 of these were categorised as Red.
News & Media
Expert writing Tips
Best practice
When using "were categorised as", ensure the criteria for categorization are clearly defined to avoid ambiguity.
Common error
Avoid overuse of the passive voice. While "were categorised as" is grammatically correct, active voice can often create more direct and engaging sentences. Consider rephrasing to emphasize who did the categorizing.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "were categorised as" functions as a passive construction indicating how something was classified or grouped. Ludwig AI confirms its usability in written English. The examples from Ludwig show it used to classify everything from research studies to people to objects.
Frequent in
Science
59%
News & Media
31%
Formal & Business
5%
Less common in
Wiki
2%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "were categorised as" is a grammatically sound and frequently used passive construction indicating how items, individuals, or concepts have been classified. Ludwig AI confirms this. It's prevalent in scientific, news, and formal business contexts, denoting objective reporting and clear organization. While correct, writers should be mindful of potential overuse of passive voice, considering active voice alternatives for more direct communication. Understanding this nuance allows for effective and precise writing in various scenarios.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
were classified as
Replaces "categorised" with a direct synonym, "classified", maintaining the meaning of grouping based on characteristics.
were grouped as
Focuses on the action of grouping, offering a slightly less formal alternative.
were designated as
Suggests a more official or formal assignment to a category.
were labeled as
Highlights the act of assigning a specific label to something.
were identified as
Emphasizes the recognition or identification of items fitting a particular category.
were defined as
Focuses on establishing a clear definition for inclusion in a category.
were sorted into
Implies a process of sorting items into different categories.
were assigned to
Indicates a specific assignment of items to predefined categories.
were considered as
Presents the act of regarding or thinking of items in a certain category.
were recognized as
Highlights the acknowledgment or recognition of items as belonging to a specific category.
FAQs
How can I use "were categorised as" in a sentence?
Use "were categorised as" to indicate how items, people, or concepts have been grouped based on specific criteria. For example, "The books "were categorised as" fiction and non-fiction."
What are some alternatives to "were categorised as"?
Alternatives include "were classified as", "were grouped as", or "were designated as", depending on the context.
Is it better to use the active or passive voice with "categorised as"?
While "were categorised as" (passive) is grammatically correct, using the active voice (e.g., "The researchers categorised them as...") can make your writing more direct and engaging.
What's the difference between "were categorised as" and "were listed as"?
"Were categorised as" implies a process of grouping based on criteria, while "were listed as" simply indicates inclusion on a list, without necessarily implying a specific grouping process. For example, entities "were listed as" suppliers.
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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
4.5/5
Expert rating
Real-world application tested