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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
they were derived
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they were derived" is correct and usable in written English.
You can use it when discussing the origin or source of something, indicating that it has been obtained or developed from another source. Example: "The results of the experiment indicate that the conclusions they were derived from previous studies."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(20)
they originated from
they came from
they were gave
they were welcomed
they experienced
they were receiving
they were arrived
they were removed
they were achieved
they were receptive
they were reached
they were inherited
they were recovered
they were received
they were granted
they were perceived
they were retrieved
they were given
they obtained
they got
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 derived from distant relatives of the modern coelacanth.
Encyclopedias
They were derived from the archaeology of the Aeolian Islands off Sicily.
News & Media
But numbers can be misleading, especially if you don't know how they were derived.
News & Media
Turning to brown fat cells, he followed the general assumption that they were derived from white fat cells.
News & Media
UnitedHealth disputes those numbers, so the attorney general will need to offer a fuller explanation of how they were derived.
News & Media
They were derived from the mammary gland cell line that gave rise to Dolly1 (Supplementary Table 1).
Science & Research
They were derived from the crossopterygians that emerged in the Devonian from freshwater settings.
Encyclopedias
She pushed forward the study of dendritic cells, realising that they were derived from Langerhans cells and played an important role in initiating and promoting immune reactions.
News & Media
P.S.C. species usually have a smaller number of individuals than the B.S.C. species they were derived from, and are therefore more likely to be classified as endangered.
News & Media
Using tear-out sheets, the reader is encouraged to deal with some difficult bidding problems before studying the deals from which they were derived.
News & Media
David F. Poltrack, chief research officer for CBS, said the Mediamark numbers were unreliable, because they were derived from people's often-low reports of their own TV watching.
News & Media
Expert writing Tips
Best practice
When using "they were derived", ensure the subject clearly refers to a plural noun and that the context indicates a clear source or origin.
Common error
Avoid using "they were derived" when the subject is singular; ensure the subject refers to multiple items or a plural concept. For example, instead of "The idea they were derived from...", use "The ideas they were derived from..." or "The idea was derived from..."
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they were derived" functions as a passive construction, indicating that the subject (they) received the action of being derived. This is consistent with examples found by Ludwig, where it highlights the origin or source of something.
Frequent in
Science
64%
News & Media
24%
Encyclopedias
6%
Less common in
Academia
4%
Formal & Business
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "they were derived" is a grammatically sound and frequently used passive construction to indicate the origin or source of something. Ludwig AI confirms its validity and widespread use, especially in scientific, academic, and news contexts. When employing this phrase, ensure that the subject is plural and that the context clearly indicates the source. Alternatives like "they originated from" or "they stemmed from" can be considered for stylistic variation. Pay attention to maintaining grammatical agreement and choose the appropriate tense to accurately reflect the relationship between the subject and its source.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
they originated from
Replaces "derived" with "originated from", emphasizing the starting point or initial source.
they stemmed from
Emphasizes the idea that something developed or arose from a particular source.
they came from
A simpler, more direct way of indicating origin or source.
they were sourced from
Highlights the act of obtaining something from a specific origin.
they were based on
Focuses on the foundation or underlying principle from which something was developed.
they were extracted from
Suggests that something was taken or obtained from a larger source.
they were developed from
Emphasizes the process of growth and evolution from an initial state or source.
their origin was in
Shifts the focus to the origin itself, rather than the act of derivation.
they are attributable to
Indicates that something can be credited or assigned to a specific source.
they find their roots in
Uses a metaphor to suggest that something has deep connections to a particular origin.
FAQs
How can I use "they were derived" in a sentence?
Use "they were derived" to indicate the origin or source of something plural. For example, "The conclusions "they were derived from" the data collected." Remember to ensure grammatical agreement with the subject.
What are some alternatives to "they were derived"?
You can use alternatives like "they originated from", "they stemmed from", or "they were based on" depending on the specific context and nuance you want to convey.
Is it correct to say "it was derived" instead of "they were derived"?
The choice between "it was derived" and "they were derived" depends on whether the subject is singular or plural. Use "it was derived" for a singular subject and "they were derived" for a plural subject to maintain grammatical accuracy.
What's the difference between "they were derived from" and "they are derived from"?
"They were derived from" implies a past action, indicating that something was obtained or developed from a source in the past. "They are derived from" suggests a present or ongoing relationship, meaning the source continues to influence or provide the basis for something in the present. The choice depends on the intended timeframe.
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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
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested