vs
QUICK ANSWER
"Who" is a form of "who", a pronoun which is often translated as "quién". "Either" is a conjunction which is often translated as "o". Learn more about the difference between "either" and "who" below.
either(
ay
-
thuhr
)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
An adjective is a word that describes a noun (e.g., the big dog).
b. ninguno de los dos (with a negated verb)
I don't think either team will win.No creo que gane ninguno de los dos equipos.
A pronoun is a word that stands in for a noun (e.g., she).
a. cualquiera
I like both of those popsicle flavors, so I can eat either.Me gustan las paletas de ambos sabores, así que puedo comerme cualquiera.
b. ninguno (with a negated verb)
I don't like beef or chicken sandwiches. I don't want either.No me gustan los sándwiches ni de carne ni de pollo. No quiero ninguno.
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
5. (as well)
a. tampoco (with a negated verb)
I don't like cockroaches either.No me gustan las cucarachas tampoco.
who(
hu
)A pronoun is a word that stands in for a noun (e.g., she).
a. quién
Hello? Who is calling?¿Hola? ¿Quién llama?
I don't know who he is, but he looks a lot like my brother.No sé quién es, pero se parece mucho a mi hermano.
2. (relative)
