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
either is the case
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "either is the case" is correct and usable in written English.
It can be used when presenting two possibilities or options, indicating that one or both may be true. Example: "In this situation, either is the case: we can proceed with the project as planned, or we can delay it for further review."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(19)
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
5 human-written examples
"I don't think either is the case," she says.
News & Media
If either is the case, why not just say so, or take the opportunity to quash suspicions?
News & Media
To find out which of either is the case must be subject of future investigation including an in-depth analysis of the genetic network involved in the formation of the tritocerebral segment in arthropods.
Science
If either is the case, adjust the tape (by cutting it or adding more) so that it covers the entire uncut center.
Wiki
For example, one principle of standard logic is the law of excluded middle, which says that something either is the case, or it isn't.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
And yet in year one of the TEF it will either be the case that all courses can raise their fees in line with inflation, or that none of the courses can".
News & Media
There appears to be no evidence that either was the case with Wilson.
News & Media
It may either be the case that a particular violation is missed although the rule is represented, or that a sound being adequately encoded is not identified as a rule violation because the rule is currently not represented.
Science
This might either be the case for the saturation technique (described below), or if the problem can be encoded without a guess & check approach (e.g. for grounded semantics).
Science
I have a hard time believing either of those is the case.
News & Media
However, it is not clear that either of these is the case.
Science
Expert writing Tips
Best practice
When using "either is the case", ensure the two options you are presenting are clearly defined to avoid ambiguity. This helps the reader understand the context and the alternatives being considered.
Common error
Avoid using "either is the case" when more than two possibilities exist, as it implies a binary choice. If there are multiple options, rephrase to accurately reflect the range of possibilities.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "either is the case" functions as a connector, linking a statement to two preceding possibilities. It indicates that at least one of those possibilities is valid. Ludwig AI confirms this is a usable phrase in English.
Frequent in
News & Media
30%
Science
25%
Wiki
15%
Less common in
Encyclopedias
10%
Formal & Business
10%
Reference
10%
Ludwig's WRAP-UP
In summary, "either is the case" is a useful phrase for indicating that at least one of two presented options is true. As indicated by Ludwig AI, it's grammatically sound and commonly used in various writing contexts, particularly in news, science, and general writing. While "either is the case" is acceptable, consider using alternatives such as "either possibility holds" or "one of the two is true" for clarity or stylistic variation. Remember to use it accurately, ensuring only two possibilities are in scope, to avoid misleading your reader. The phrase functions as a connector and has neutral register.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
either possibility holds
Emphasizes that one of two possibilities is true, similar to the original phrase but more direct.
one of the two is true
States directly that at least one of two options is valid.
one or both are valid
Highlights the validity of one or both options, adding clarity.
it's either one or the other
Focuses on the exclusivity or inclusiveness of the options.
either scenario is applicable
Replaces "case" with "scenario", suitable when discussing hypothetical situations.
either alternative applies
Uses "alternative" instead of "case", suitable when discussing choices.
either situation is correct
Substitutes "situation" for "case", suitable when assessing circumstances.
either outcome is possible
Focuses on potential results, using "outcome" instead of "case".
it may be so in either instance
More formal and verbose, suitable for academic or legal contexts.
either way it could happen
Implies that regardless of which option, some thing will happen.
FAQs
How do I use "either is the case" in a sentence?
Use "either is the case" to indicate that one of two presented options or situations is true. For example, "We can proceed as planned, or we can delay. Either is the case."
What can I say instead of "either is the case"?
You can use alternatives like "either possibility holds", "one of the two is true", or "either scenario is applicable" depending on the context.
Is it correct to say "either of which is the case"?
Yes, "either of which is the case" is grammatically correct and used to refer back to two previously mentioned items or possibilities, indicating that one of them is true or applicable.
What's the difference between "either is the case" and "both are the case"?
"Either is the case" implies that one of two options is true, while "both are the case" means that both options are true simultaneously. The choice depends on the context and the relationship between the options.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested