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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
then either
Grammar usage guide and real-world examplesUSAGE SUMMARY
'then either' is correct and usable in written English.
It is used to indicate a choice between two alternatives. For example: "You can either leave now, then either return tomorrow or stay until the weekend."
✓ Grammatically correct
News & Media
Science
Academia
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
It is other / then either".
News & Media
Did you not participate then either?
Academia
Trump then either resigns or is impeached.
News & Media
"She didn't talk to me then, either".
News & Media
Since then either Penn or Yale has won the trophy.
News & Media
And I don't know if I'll be playing then either".
News & Media
We will then either reclassify them, or will exit".
News & Media
In which case it's not right then, either.] Um.
News & Media
It could then either endorse or reject them.
News & Media
Nanoparticles were then either administered intravenously or applied topically to the wound bed.
Academia
Claim: If \(P∧Q\) is false, then either \(P\) is false or \(Q\) is false.
Academia
Expert writing Tips
Best practice
Use "then either" to clearly present mutually exclusive options or consequences following a condition. Ensure that the sentence structure supports the clarity of the choice being presented.
Common error
Avoid separating "then" and "either" with lengthy clauses that obscure the intended connection. Keep them together to maintain clarity. For example, instead of "If X occurs, then, depending on circumstance Y, either A or B", write "If X occurs, then either A or B, depending on circumstance Y".
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "then either" functions as a conjunctive adverbial phrase, introducing alternative consequences or possibilities that stem from a preceding condition. Ludwig AI confirms that it is a correct and usable phrase in written English. The examples show its role in presenting choices or outcomes based on a prior event.
Frequent in
News & Media
38%
Science
32%
Academia
30%
Less common in
Formal & Business
0%
Reference
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "then either" is a versatile phrase used to introduce alternative consequences following a condition. Ludwig AI confirms its grammatical correctness and usability. It's prevalent across diverse contexts, notably news, science, and academia. When writing, ensure that the alternatives presented after "then either" are clear and mutually exclusive to avoid confusion. While alternatives exist, "then either" provides a direct and effective way to convey choices or outcomes. By understanding its function and purpose, writers can confidently use "then either" to enhance clarity and precision in their communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
alternatively then
Swaps the order of the words, emphasizing the alternative nature.
or else then
Highlights the consequence if the first option isn't chosen.
in that case either
Specifies a condition under which the alternatives apply.
subsequently either
Focuses on the sequential nature of the alternatives.
thereafter either
Similar to 'subsequently either', emphasizing a later time.
in turn either
Suggests a cyclical or reciprocal relationship between choices.
following that either
Emphasizes the chronological order of events or choices.
next either
Simply indicates what comes after, with a choice.
hence either
Indicates that the alternatives are a logical consequence.
thus either
Similar to 'hence either', showing a result or conclusion.
FAQs
How can I use "then either" in a sentence?
Use "then either" to present a choice or consequence that follows a specific condition. For example: "If the conditions are met, then either the project will proceed, or it will be cancelled".
What are some alternatives to "then either"?
Alternatives include phrases like "alternatively then", "or else then", or "in that case either", depending on the specific nuance you want to convey.
Is it correct to say "either then" instead of "then either"?
While "either then" might be grammatically understandable in certain contexts, "then either" is the more standard and widely accepted phrasing for presenting a consequence followed by alternatives.
How does the meaning change if I use "then" without "either"?
Using "then" without "either" implies a direct sequence or consequence, without explicitly presenting alternatives. For example, "If it rains, then the game will be cancelled" is a straightforward consequence, whereas "If it rains, then either the game will be cancelled or moved indoors" presents two possible outcomes.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested