German phrase
Möchten Sie mit mir in ~ gehen?
Meaning
Would you like to go to ___ with me?
When to use it
A polite invitation. Use it with strangers or people you respect.
Example dialogue
Möchten Sie mit mir in die Bibliothek gehen?
Would you like to go to the library with me?
Ja, gern. Wann passt es Ihnen?
Yes, gladly. When is convenient for you?