vs
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"Who" is a form of "who", a pronoun which is often translated as "quién". "How many" is a phrase which is often translated as "cuántos". Learn more about the difference between "how many" and "who" below.
how many(
hau
meh
-
ni
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. cuántos
How many days will you be out?¿Cuántos días vas a estar fuera?
How many pets do you have?¿Cuántas mascotas tienes?
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)