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
and either further
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "and either further" is not correct in standard written English.
It seems to be an incomplete expression and lacks clarity in its intended meaning. Example: "We can discuss the project details and either further our collaboration or explore new opportunities."
⚠ May contain grammatical issues
Science
News & Media
Formal & Business
Alternative expressions(3)
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
3 human-written examples
The cells are then seeded into various biocompatible scaffolds and either further cultured under chondrogenically favorable conditions or implanted immediately [ 20- 22].
The product of the MMO reaction, methanol, is then converted to formaldehyde by methanol dehydrogenase (MDH) and either further oxidized to carbon dioxide via formaldehyde and formate dehydrogenases or assimilated into multicarbon compounds.
Science
Embryos and larvae of all species studied were fixed overnight in 4% paraformaldehyde in phosphate-buffered saline (PBS; 0.1 M, pH 7.4) at 4°C and then washed in several changes of PBS and either further processed immediately or preserved in PBS containing 0.05% sodium azide for several weeks at 4°C.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
A total of 1445 patients manifested disease progression and received either further treatment with bevacizumab (n = 642, 44%), treatment other than bevacizumab (n = 531, 37%), or no treatment (n = 253, 18%) after progression.
Science
Glyoxylate and succinate are the products of the isocitrate lyase reaction, and glyoxylate is either further oxidized to oxalate via the glyoxylate oxidase or used as precursor for malate synthesis.
Science
"We spent months with the heads of product for leading mobile companies, Flurry, MoPub, TapCommerce, and Criteo, working together to create a specification that provides a rich set of features that are easy to implement and open for either further refinement as the industry develops," says Long.
News & Media
Therefore, early (30 days postoperatively), intermediate (30 days to 5 months postoperatively) and late complications (from postoperative month 6 onward) were recorded and assessed according to their degree of severity and the need for either further surgery or conservative regime.
The pier became the centre of a bitter struggle between the Government and conservationists, who opposed either further destruction of the harbour or the further loss of historical buildings.
Wiki
If you need to adjust the height at which your sling hangs, loosen this knot and tie a new one either further "up" or "down" the length of the fabric.
Wiki
We alone decide how our talents are bestowed upon the world — to either further our own interests and passions, or to gain the momentary approval of our peers and cohorts.
News & Media
MusD, B1 and B2 showed an increase at 24 months and either a further increase (MusD) or small drop (B1, B2) at 36 months.
Science
Expert writing Tips
Best practice
When presenting options, ensure clarity by using "either" in conjunction with "or". Rephrase to maintain grammatical accuracy and logical flow.
Common error
Avoid using "either" without a corresponding "or" to present an alternative. If you're not offering a choice, rephrase to avoid the need for "either" altogether.
Source & Trust
81%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "and either further" functions as a conjunction, attempting to connect two related ideas while presenting an alternative. However, according to Ludwig AI, the construction is not considered standard written English and lacks clarity. This impacts its effectiveness in formal communication.
Frequent in
Science
33%
News & Media
33%
Formal & Business
33%
Less common in
Wiki
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "and either further" aims to connect and expand on ideas while offering alternatives. However, as indicated by Ludwig AI, this phrase is grammatically questionable and not considered standard English. It's best to use it cautiously, primarily in informal contexts. When clarity and precision are paramount, especially in formal writing, it's advisable to opt for grammatically sound alternatives like "and also subsequently" or "and in addition". Such alternatives will reinforce the intended meaning without compromising grammatical correctness. While some examples do exist across diverse sources, the grammatical ambiguity impacts its overall reliability.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
and also subsequently
Replaces "either further" with "also subsequently" to clearly indicate a sequence of events or actions.
and correspondingly also
Employs "correspondingly also" to show a direct relationship between the prior statement and what follows.
and also in addition
Substitutes "either further" with "also in addition" for a clearer additive conjunction.
and thus additionally
Substitutes with "thus additionally" to show that what follows is both a consequence and an addition to the previous statement.
and then additionally
Uses "then additionally" to specify that something more is being added or considered.
and similarly furthermore
Replaces with "similarly furthermore" to explicitly state that what follows is analogous and adds to the previous point.
and likewise beyond that
Changes to "likewise beyond that" to suggest a continuation in a similar direction.
and besides subsequently
Uses "besides subsequently" to introduce an additional, related point following the first.
and even moreover
Employs "even moreover" to amplify the initial statement with a stronger additive.
and thereafter furthermore
Changes to "thereafter furthermore" to indicate a time sequence along with the addition of more information.
FAQs
How can I rephrase "and either further" to be grammatically correct?
To correct the phrase, consider alternatives like "and also subsequently" or "and in addition". These options provide a clearer additive conjunction.
When is it appropriate to use the word "either"?
Use "either" when presenting a choice between two options, paired with "or". For example, "You can "either stay or leave"".
What are some common mistakes to avoid when using "either"?
A frequent error is using "either" without a corresponding "or", leading to incomplete or confusing sentences. Ensure that "either" is always paired with "or" to present a clear alternative.
Is "and either further" considered formal or informal language?
Given its grammatical ambiguity, "and either further" is best avoided in formal writing. Opt for clearer and more precise alternatives to maintain professionalism.
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
81%
Authority and reliability
2.8/5
Expert rating
Real-world application tested