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QUICK ANSWER
"What" is a form of "what", a pronoun which is often translated as "qué". "Are you crazy" is a phrase which is often translated as "estás loco". Learn more about the difference between "are you crazy" and "what" below.
are you crazy(
ar
yu
krey
-
zi
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. estás loco
I want to skydive. - Are you crazy, or do you want to die?Quiero hacer paracaidismo. ¿Estás loco, o quieres morir?
what(
wuht
)A pronoun is a word that stands in for a noun (e.g., she).
An adjective is a word that describes a noun (e.g., the big dog).
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).