German phrase
Wo muss ich umsteigen?
Meaning
Where do I need to change trains?
When to use it
It asks where to change. Use it politely when checking a transfer with staff or strangers.
Example dialogue
Wo muss ich umsteigen?
Where do I need to change trains?
Sie müssen am Hauptbahnhof auf Gleis 5 umsteigen.
You need to change trains at Central Station, on platform 5.