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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
for either
Grammar usage guide and real-world examplesUSAGE SUMMARY
"for either" is correct and can be used in written English.
It is used as a conjunction to introduce a clause when talking about two items or possibilities. For example: "We can go for a hike or a swim, for either would be a nice way to spend the day."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(8)
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
For either of you.
News & Media
Not for either of them.
News & Media
Best yet for either team.
News & Media
No changes for either team.
News & Media
(No fee for either).
News & Media
No new bidder emerged for either company.
News & Media
No casting was announced for either project.
News & Media
"I can't vouch for either army.
News & Media
— ANDREW DAS No changes for either team.
News & Media
That makes no sense for either country.
News & Media
Nokia was not prepared for either one.
News & Media
Expert writing Tips
Best practice
In formal writing, you can use "for" as a conjunction meaning 'because', followed by "either" as a pronoun subject, though this is less common than the prepositional usage.
Common error
Avoid using "for either" when your list contains three or more options. In those instances, use "for any" or "for any of" to maintain grammatical precision.
Source & Trust
93%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "for either" typically functions as a prepositional phrase where "either" acts as a pronoun or determiner referring to one of two possibilities. In more formal contexts, as noted by Ludwig AI, it can also appear where "for" acts as a coordinating conjunction (meaning 'because') introducing a clause with "either" as the subject.
Frequent in
News & Media
65%
Wiki
20%
Science
10%
Less common in
Formal & Business
3%
Academia
1%
Social Media
1%
Ludwig's WRAP-UP
Ludwig AI confirms that "for either" is a grammatically correct and versatile phrase used extensively in high-quality writing. Whether functioning as a prepositional phrase or a conjunction in more formal structures, it effectively bridges two distinct possibilities. The examples from The New York Times and The Guardian demonstrate its utility in both professional reporting and everyday instructions. Writers should confidently use this phrase to indicate individual application to two options while ensuring that the context clearly involves exactly two items. For more than two items, remember to switch to alternatives like "for any".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
for either one
Adds emphasis to the individual nature of the two choices
for either of them
Uses a pronoun structure to refer to previously mentioned subjects
for both
Includes both items together rather than presenting them as alternatives
for both of them
A more explicit way to include both subjects mentioned
to either
Changes the preposition to indicate direction or applicability
for each
Emphasizes the individual application to every member of a set
as for either
Used as a transition to discuss two specific topics
in either case
Shifts focus to the situation or outcome rather than the items
for any
Broadens the scope beyond two items to an unspecified number
on either side
A spatial or positional variation of the concept
FAQs
How do I use "for either" in a sentence?
You can use it to show that a cost, rule or condition applies to one of two choices, such as: The fee is ten dollars "for either tour".
What is the difference between "for either" and "for both"?
While "for both" implies the two items are taken together, "for either" suggests that the statement applies to each one individually as an alternative.
Can I use "for either" when there are three choices?
No, it is strictly used for two options. If there are more than two, you should use "for any" instead.
Is it correct to say "for either one"?
Yes, "for either one" is a very common and correct variation that adds a bit more emphasis to the singularity of the choice.
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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
93%
Authority and reliability
4.8/5
Expert rating
Real-world application tested