vs 

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"En cuanto" is a phrase which is often translated as "as soon as", and "a menos que" is a conjunction which is often translated as "unless". Learn more about the difference between "en cuanto" and "a menos que" below.
en cuanto(
ehng
 
kwahn
-
toh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. as soon as
Nos iremos al cine en cuanto lleguen.We will go to the movies as soon as they get here.
a. as
¿Qué opina usted en cuanto miembro del grupo afectado por esta legislación respecto de esta nueva ley?As a member of the group affected by this legislation, what's your opinion on this new law?
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a menos que(
ah
 
meh
-
nohs
 
keh
)
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
conjunction
a. unless
A menos que salgamos ahora, llegaremos tarde a la fiesta.Unless we leave now, we'll be late to the party.
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