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"Hasta que" is a phrase which is often translated as "until", and "a qué" is a phrase which is often translated as "to what". Learn more about the difference between "hasta que" and "a qué" below.
hasta que(
ahs
-
tah
 
keh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. until
No dejará de trabajar hasta que consiga su meta de ventas.He won't stop working until he reaches his sales goal.
b. till
Espera hasta que deje de llover para salir.Wait till it stops raining to leave.
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a qué(
ah
 
keh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. to what
¿A qué conclusión llegaste con tu investigación?To what conclusion did you arrive with your research?
b. what
No sé a qué libro te refieres, Pedro.I don't know what book you're referring to, Pedro.
c. at what
¿A qué hora llega el avión?At what time does the plane arrive?
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