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
request by
Grammar usage guide and real-world examplesUSAGE SUMMARY
It is correct and usable in written English.
You can use it when asking someone to do something and when referring to a request that someone has made. For example: "Please accept this request by tomorrow."
✓ Grammatically correct
News & Media
Science
Alternative expressions(4)
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
What request by Janet Reno was denied?
News & Media
"It's the most common request by far".
News & Media
The utility suspended that request by evening.
News & Media
Boyd responded to the request by making threatening, nonsensical comments.
News & Media
On its face, the request by Channel 10 is modest.
News & Media
This article was commissioned after a request by StevHep.
News & Media
That request by Teixeira is more than reasonable.
News & Media
"The request by students is being considered," says the college.
News & Media
The request by students is being considered within these processes".
News & Media
A bail request by Rehman's legal team was rejected.
News & Media
This article was commissioned after a request by CiFAndrew.
News & Media
Expert writing Tips
Best practice
When using "request by", ensure that the context clearly indicates who is making the request and what is being requested for clarity and precision.
Common error
Avoid ambiguity by explicitly stating who is making the request and who or what is the target of the request. For example, instead of "request by management", clarify as "request by management for employee feedback".
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
"Request by" primarily functions as a prepositional phrase that modifies a noun, indicating the source or initiator of a request. It specifies who made the request, as seen in Ludwig examples such as "That request by Teixeira is more than reasonable."
Frequent in
News & Media
40%
Science
30%
Formal & Business
10%
Less common in
Wiki
10%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "request by" is a prepositional phrase used to specify the originator of a request. Ludwig AI highlights that it is grammatically correct and widely used, particularly in news, scientific, and formal business contexts. The phrase is versatile, suitable for neutral to formal communication, and its meaning is clearly understood. While alternatives like "demand by" or "application by" exist, the choice depends on the specific nuance you wish to convey. It is important to state explicitly who is making the request to avoid any possible ambiguities.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
asked for by
Simplifies the phrase to a more direct inquiry or need expressed by someone.
called for by
Implies a public demand or need voiced by someone.
demand by
Replaces "request" with a stronger term, implying a more forceful appeal.
application by
Focuses on a formal submission made by someone.
appeal from
Indicates a formal plea originating from someone.
petitioned by
Suggests a formal written request signed by many people, initiated by someone.
sought by
Emphasizes the act of someone actively seeking something.
initiated by
Highlights the act of starting or beginning something at someone's behest.
suggested by
Indicates a proposal or idea put forth by someone.
proposed by
Similar to suggested, but often implies a more formal or structured suggestion from someone.
FAQs
How can I use "request by" in a sentence?
You can use "request by" to indicate who initiated a request, as in "The investigation was initiated upon a "request by" the board of directors".
What are some alternatives to "request by"?
Alternatives include "demand by" (for a stronger emphasis), "application by" (for formal submissions), or "asked for by" (for a simpler phrasing).
Is it better to use "request from" or "request by"?
Use "request by" to specify the source or initiator of the request (e.g., "a request by the customer"). Use "request from" to indicate the recipient or target of the request (e.g., "a request from the customer").
How does the formality of "request by" compare to other similar phrases?
The phrase "request by" is generally neutral to formal. Phrases like "demand by" carry more weight and can imply urgency or authority, while phrases such as "asked for by" are more informal.
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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