German phrase
Das muss ich recherchieren.
Meaning
I'll have to look that up
When to use it
Used when you need to check. It signals that you will find the answer later.
Example dialogue
Weißt du, wann der Bus zum Flughafen fährt?
Do you know when the bus to the airport leaves?
Das muss ich recherchieren.
I'll have to look that up.