vs
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"Si" is a form of "si", a conjunction which is often translated as "if". "En caso de que" is a phrase which is often translated as "in the event that". Learn more about the difference between "en caso de que" and "si" below.
en caso de que(
ehn
kah
-
soh
deh
keh
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. in the event that
En caso de que el vuelo sea cancelado, pueden tomar el siguiente.In the event that your flight is canceled, you can take the following one.
si(
see
)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).