0 Yes you use it with the plural form in those cases. Think of it as saying please use one of the following methods. They are using one/either (singular) out of more than one option.
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01cite10Jenthecute12cite10can i use "either" with plural forms as shown below??12br10You can say even "Please use either methods" at least in speech. But please note that "Please use the either methods" is wrong.02br
10"Please use either of the methods!"12blockquote
01cite10Waïti12cite10Yes Goodman you are right but like Nona explained it earlier, when you say 'use either options' you actually mean 'use either ONE OF THE TWO options'. The center part of the sentence is just implied instead of being spoken/written, and is indeed singular.12br10I a
10Waïti.12blockquote
01cite10Davkett12cite10I don't believe Nona approved the use of the phrase 'either methods' or 'either options'. The correct versions of the phrases would be 11font10'either method'12font10 and 11font10'either option', 10or10 10(ellipted)10 12f