Breakdown of Cuando la mosca vuelva a volar, vamos a salir del cuarto.
el cuarto
the room
ir
to go
a
to
del
from the / of the
Questions & Answers about Cuando la mosca vuelva a volar, vamos a salir del cuarto.
Why do we use the subjunctive vuelva here instead of the indicative vuelve?
The word cuando triggers the subjunctive when we are talking about an action in the future that hasn't happened yet. Because we are waiting for the fly to take flight in the future, we use vuelva. If we were talking about a routine (Whenever the fly flies, we leave), we would use the indicative vuelve.
Where does the meaning "again" come from in vuelva a volar?
Could I use the future tense saldremos instead of vamos a salir?
Why does the sentence use del cuarto instead of de el cuarto?
Whenever the preposition de (of/from) is followed by the masculine article el (the), they must merge to form the contraction del. It is a mandatory rule in Spanish to write and say del cuarto (from the room) instead of de el cuarto.