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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
pertain as
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "pertain as" is not correct and does not convey a clear meaning in written English.
It is not a standard expression and may confuse readers. Example: "The regulations pertain as guidelines for safety protocols."
⚠ May contain grammatical issues
Science
News & Media
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
2 human-written examples
The difficulty with this approach is that the national incidence figures would not then pertain, as the simple fact of requesting testing of the haemoglobin selects a group in whom the risk of cancer is now twice the national risk – in that something, probably symptoms, triggered estimation of the haemoglobin.
Science
Suboptimal drug concentrations, to those defined as optimal in clinical trials, can pertain as a consequence of the pharmacokinetics and pharmacodynamics of the drug mediated by host genetic background, adherence to recommended drug regimens and other factors such immune-incompetence and nutritional state of the host.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
It's theological, but it always pertains as immediately as any fairy tale does.
News & Media
Safety concerns pertained as much to facial cuts as other more serious head injuries (Table 5, no. 5).
Science
All the incentives and conflicts of interest we discussed with LGS1 pertain here, as well.
Here, he divides his treatment into the graces that pertain to angels (as well as their ministries) and the graces that pertain to human beings.
Science
Similar to "Scream", the lyrics to "They Don't Care About Us" pertain to injustice, as well as racism.
Wiki
What he says of his chestnut colt pertains just as much to him.
News & Media
It pertains just as much to all other expert advice, addressing gluten, fructose, meat, carbs, and so on.
News & Media
Therefore, each user receives a more customized astrological reading rather than generic information designed to pertain to as many people as possible.
News & Media
This extends to matters that pertain to nursing as well.
Science
Expert writing Tips
Best practice
Avoid using "pertain as" in formal writing. Opt for clearer and more accepted alternatives like "relate to" or "apply to".
Common error
Do not use "pertain as" expecting it to convey the meaning of "relate to" or "apply to". This usage is non-standard and can detract from the clarity of your writing. Instead, use the correct and common phrasing of '"pertain to"'.
Source & Trust
89%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "pertain as" functions as a linking phrase, attempting to connect a subject with its relevance or application. However, it is grammatically incorrect. As Ludwig AI states, this phrase is non-standard and may confuse readers. The proper phrase is '"pertain to"'.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the phrase "pertain as" attempts to express a relationship or relevance, it is grammatically incorrect. Ludwig AI confirms that this phrase is non-standard and potentially confusing. The correct form is '"pertain to"', which effectively conveys that something relates or applies to a specific subject. When writing, prioritize clarity and accuracy by using established and accepted phrases like '"relate to"' or '"apply to"' instead of "pertain as". Although there are a few examples of "pertain as" being used, these should be regarded as errors, and it's better to avoid this phrase altogether.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
pertain to
Directly indicates that something belongs or relates to a particular subject.
relate to
Focuses on a direct connection or relevance between two subjects.
apply to
Emphasizes the applicability of something, like a rule or principle.
refer to
Highlights that something makes a reference to or concerns a particular subject.
concern
Stresses that something is about or of importance to a particular topic.
bear on
Suggests an influence or relevance that something has on a specific matter.
have relevance to
Explicitly indicates the pertinence of something to a subject.
be relevant to
Similar to 'have relevance to' but uses a more direct verb.
connect with
Emphasizes the relationship or association between different entities.
have a bearing on
Similar to 'bear on', focusing on the influence something has.
FAQs
What does "pertain to" mean, and how does it differ from "pertain as"?
"Pertain to" means to relate to or apply to something. It is the correct and widely accepted form. "Pertain as" is considered grammatically incorrect and should be avoided. Use '"pertain to"' to express relevance or connection.
Can I use "pertain as" in informal writing or speech?
While "pertain as" might be understood in some contexts, it is generally advisable to avoid it even in informal settings. Using the correct phrase, '"pertain to"', ensures clarity and avoids potential confusion.
What are some common alternatives to "pertain as"?
Is "pertain as" ever considered correct in any specific dialect or context?
No, "pertain as" is not considered a correct or standard usage in any recognized dialect of English. Always use the correct form, '"pertain to"', to maintain grammatical accuracy.
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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
89%
Authority and reliability
2.8/5
Expert rating
Real-world application tested