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"Con que" is a preposition which is often translated as "as long as", and "de qué" is a phrase which is often translated as "what". Learn more about the difference between "con que" and "de qué" below.
con que(
kohn
keh
)A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
a. as long as
Me contento con que arregles tu habitación.I am satisfied as long as you tidy up your room.
a. with which
La policía no ha encontrado todavía el arma con que dispararon a la víctima.The police haven't yet found the weapon with which the victim was shot.
de qué(
deh
keh
)A phrase is a group of words commonly used together (e.g., once upon a time).
