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"Que tu" is a form of "que tu", a phrase which is often translated as "that your". "Antes de" is a preposition which is often translated as "before". Learn more about the difference between "antes de" and "que tu" below.
antes de(
ahn
-
tehs
deh
)A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
que tu(
keh
too
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).