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"When" is an adverb which is often translated as "cuándo", and "how many" is a phrase which is often translated as "cuántos". Learn more about the difference between "when" and "how many" below.
when(
wehn
)
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
adverb
a. cuándo
When was the last time you cried?¿Cuándo fue la última vez que lloraste?
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
conjunction
a. cuando
I was sleeping when he got home.Estaba durmiendo cuando llegó a casa.
b. en que
That was the year when we bought our first apartment.Ese fue el año en que compramos nuestro primer apartamento.
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how many(
hau
 
meh
-
ni
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. cuántos
How many days will you be out?¿Cuántos días vas a estar fuera?
How many pets do you have?¿Cuántas mascotas tienes?
a. cuanto
You pay depending on how many you choose.Pagas en base a cuantos escojas.
b. número de
There is a limit to how many times a cell can divide.Hay un límite al número de veces que una célula se puede dividir.
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