The subject of either and vs either or englishlanguageusage stack encompasses a wide range of important elements. Either or - EnglishLanguage & UsageStack Exchange. 12 (1) In this question on math.SE a question about the meaning of 'either' before a list which ends with 'and'. The meaning of either a, b, c, or d is from this answer sort of clear in that it means a or b or c or d.
Even if or can mean all included, the either seems to indicate an exclusivity. so exactly one of them. This perspective suggests that, but what does either a, b ... Building on this, 'either of you' vs 'both of you' vs 'one of you two'.
Either should know how to open the door means whichever you should happen to come across, he will know how to open the door. Of course this suggests that they both know, but it's not the same as saying that they both know: the suggestion is that you will only encounter one, and that he will know (maybe he will be told at the last minute). Is there a rule in British English about how to pronounce "either"?. There are two common pronunciations of "either": British /ˈaɪðər/ and American /ˈiːðər/.

If Americans are more or less consistent in this regard, then the Brits seem to be freely using both. etymology - Why are there two pronunciations for "either"? The word either is derived from the Old English ǣgther, which was a short for contracted form of ǣg (e)hwæther, of Germanic origin. E-Intro to Old English - 2.
Either...or...or...or - WordReference Forums. Similarly, we have a table and some fruits on it. There are two people one of which is being asked by the other one: 1) I will give you either the orange or the banana or the qiwi or the lemon 2) I will give you either the orange, the banana, the qiwi or the lemon. Furthermore, which phrase would be correct...

word choice - Is “either” only used with two options? Either is used where one is required and there are multiple options, usually two. It can be used for more than two but it is most often is used for only 2 options.
What's the best way to use "either" on more than two options?. It says that it is informal to use "either" on more than two options, but is used widely especially in oral communication. From another angle, however, he didn't mention that what is the best alternative to "either" in three or more options in formal context, and hence I posted this question here. (Plural/Singular) - English Language & Usage Stack Exchange.

EDITED: In fact, "Does either of you" and "Do either of you" are both used by native English speakers. But if the subject isn't either of you, you should use a singular verb with either of. grammar - Is "Either of the two" used correctly? - English Language ....

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