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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
at each case
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "at each case" is not correct in standard written English.
The correct expression would be "in each case." Example: "In each case, we found that the results were consistent with our hypothesis."
⚠ May contain grammatical issues
Science
News & Media
Formal & Business
Alternative expressions(20)
in every instance
in each case
for each case
for every situation
on a case-by-case basis
per case
each time
in individual cases
at each instance
at each procedure
at each visit
at each occurrence
at each phase
at each corner
at each location
at each country
at each juncture
at each locality
at each occasion
at each scenario
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
56 human-written examples
"You should look at each case individually".
News & Media
"We look at each case on its merits.
News & Media
You have to look at each case on its merits.
News & Media
The point she was making was that we should look clearly at each case.
News & Media
"You have to look at each case separately and the context of the action".
News & Media
"He looked at each case before him and dealt with the issues that were presented".
News & Media
Every nation has a different history — and we have look at each case in particular.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
4 human-written examples
These were plugged into equations whose key variable was the rate at which each case gave rise to others.
News & Media
Right now, Mr. Smitherman said, the commission is looking at each project case by case.
News & Media
Work in ethics requires all levels of inquiry proposed by the disputants, not always all at once or in each case, but at some time or other.
Science
The Reynolds number, which is based on hydraulic diameter and velocity, was fixed at 10,000 in each case.
Expert writing Tips
Best practice
Always use the phrase "in each case" instead of "at each case" to ensure grammatical correctness. "In each case" is the standard and accepted form in formal writing.
Common error
Avoid using "at" when "in" is grammatically correct. The preposition "in" indicates enclosure or containment, which aligns with the idea of a case as a specific set of circumstances or context.
Source & Trust
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at each case" functions as a prepositional phrase, typically used to specify the scope of an action or observation. However, Ludwig AI indicates that it is grammatically incorrect and should be replaced with "in each case".
Frequent in
Science
33%
News & Media
51%
Formal & Business
8%
Less common in
Encyclopedias
0%
Wiki
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "at each case" is a commonly encountered but grammatically incorrect expression. As Ludwig AI points out, the correct form is "in each case". This phrase functions as a prepositional phrase, designed to specify the scope of individual consideration within a series of instances. While examples of "at each case" appear across diverse source types including science, news, and business, it's important to acknowledge and correct this grammatical error. Remember to utilize "in each case" for accurate and clear communication, and to emphasize the individual aspect of a situation. Utilizing alternatives like "for each case" or "on a case-by-case basis" may provide clarity or formality depending on the context.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
in each case
Replaces "at" with the correct preposition "in" to make the phrase grammatically correct.
for each case
Uses "for" to indicate that something applies to each case individually.
in every instance
Replaces "case" with "instance" to provide a slightly more formal alternative.
for every situation
Uses "situation" instead of "case", implying a broader context.
on a case-by-case basis
Emphasizes the individual evaluation of each case.
with each case
Uses "with" to show association or accompaniment.
per case
A more concise way of saying "for each case", often used in business contexts.
each time
Simplifies the phrase to focus on the temporal aspect of each instance.
in individual cases
Highlights the individuality of each case, reinforcing the need for separate consideration.
as regards each case
A more formal and specific way of saying "concerning each case".
FAQs
What is the correct way to say "at each case"?
The correct way to say "at each case" is "in each case". The preposition "in" is appropriate here.
Is "at each case" grammatically correct?
No, "at each case" is not grammatically correct in standard English. The correct preposition to use is "in", making the phrase "in each case".
What can I use instead of "at each case" to sound more formal?
To sound more formal, you can replace "at each case" with phrases like "in every instance" or "as regards each case". However, the standard correction is simply "in each case".
When should I use "in each case" instead of "at each case"?
You should always use "in each case" instead of "at each case". The latter is grammatically incorrect. Use "in each case" to refer to individual instances or situations within a series.
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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
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested