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
in what cases
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'in what cases' is correct and usable in written English.
You can use it when you are inquiring about specific instances or situations or when you are referring to specific types of situations. Example sentence: Could you explain in what cases I would need to fill out the additional paperwork?.
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
under what circumstances
in which situations
under what conditions
when is it appropriate
in what circumstances
in which instances
on what occasions
in what regard
on what level
for what reason
in what instances
in what world
what led to that happening
on what reason
in what setting
in what regards
under what circumstance
on what gear
what brought that about
what was the rationale
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
18 human-written examples
In what cases does a sharp increase in voter turnout warrant suspicion?
News & Media
And you have prosecutors who have wide discretion in what cases to bring, what charges to call for, and what sentences to agree to in plea bargains".
News & Media
Ms. Gillibrand, who worked for Philip Morris when the tobacco industry faced mounting criticism and intensified legal scrutiny, countered that she was a young lawyer at the firm who had no choice in what cases she was assigned.
News & Media
For the first two cases, we establish tight complexity results on the problem, and show in what cases it is decidable.
Science
After determining the energy consumed by each routine for each execution scope, we identified in what cases it is convenient to reallocate the processing job, and when it is advisable to offload it to an external execution environment.
"People might feel like they should stimulate their brain as much as they want, but just as buying a medicine on the counter, you need to know when to use it, how often, in what conditions and in what cases you should not take it".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
41 human-written examples
Policy fights, partnerships and perseverance will be crucial in what Case calls the third wave of start-ups. .
News & Media
An obvious question now arises: in what case can this modified approach work and how should the specific individual re-sampling intervals be adequately chosen?
Science
In what other cases have they been issued?
News & Media
In what class of cases can the best results be secured?
"In case of what?" "In case we don't meet up again".
News & Media
Expert writing Tips
Best practice
Use "in what cases" to introduce specific conditions or scenarios under which a particular rule, guideline, or action applies.
Common error
Avoid using "in what cases" when a simpler question like 'when' or 'how' would suffice. Be specific about the nature of the 'cases' you're inquiring about.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "in what cases" functions as an interrogative phrase that introduces a question seeking to identify specific situations or conditions under which something occurs or is applicable. Ludwig AI confirms its correctness and usability.
Frequent in
News & Media
47%
Science
42%
Wiki
5%
Less common in
Formal & Business
3%
Reference
3%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "in what cases" is a versatile interrogative tool used to inquire about the specific situations or conditions relevant to a particular subject. As Ludwig AI confirms, it is grammatically correct and widely applicable across various contexts, including news, science, and general discussions. While alternatives like "under what circumstances" and "in which situations" exist, "in what cases" remains a direct and effective way to seek clarification about conditional scenarios. Remember to use it precisely and avoid overly broad applications to ensure clear and effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
under what circumstances
Replaces "cases" with "circumstances", emphasizing the specific conditions.
in which situations
Substitutes "cases" with "situations", focusing on particular scenarios.
under what conditions
Replaces "cases" with "conditions", highlighting specific requirements.
in what circumstances
Similar to "under what circumstances", but uses "in what" instead of "under what".
in which instances
Replaces "cases" with "instances", focusing on specific occurrences.
when is it appropriate
Shifts the focus to appropriateness, changing the structure to a question of suitability.
when does it apply
Focuses on the applicability of a rule or guideline.
on what occasions
Substitutes "cases" with "occasions", emphasizing specific events or instances.
when is it justified
Emphasizes the justification or reason behind an action or decision.
when is it permissible
Highlights the permissibility or allowability of something.
FAQs
How can I use "in what cases" in a sentence?
You can use "in what cases" to inquire about specific situations or conditions. For example, "In what cases is the policy applicable?"
What's a more formal alternative to "in what cases"?
A more formal alternative is "under what circumstances", which conveys a similar meaning with a slightly more sophisticated tone.
How does "in what cases" differ from "when"?
"When" refers to a point in time, while "in what cases" refers to specific situations or conditions. Use "when" for temporal inquiries and "in what cases" for conditional ones. For example, "When should I submit the form?" vs. "In what cases should I submit the form?"
What can I say instead of "in what cases"?
You can use alternatives like "in which situations", "under what conditions", or "when is it appropriate" depending on the context.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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
4.5/5
Expert rating
Real-world application tested