German phrase
Was passiert, wenn ~ ausfällt?
Meaning
What happens if ___ is canceled?
When to use it
It asks what happens next. Use it to ask about the result when a class or event is canceled.
Example dialogue
Was passiert, wenn das Seminar ausfällt?
What happens if the seminar is canceled?
Dann informiert der Dozent uns und es gibt einen Nachholtermin.
Then the lecturer will inform us, and there will be a make-up session.