French phrase
Je suis désolé, mais je ne peux pas ~.
Meaning
I'm sorry, but I can't ___.
When to use it
A polite refusal to do something. Common in business settings when declining a request or change of plans.
Example dialogue
Pouvez-vous assister à la réunion demain ?
Can you attend the meeting tomorrow?
Je suis désolé, mais je ne peux pas assister à la réunion demain.
I'm sorry, but I can't attend the meeting tomorrow.