Spanish phrase
Lo siento, no podré ~.
Meaning
I'm sorry but I won't be able to ___.
When to use it
Expresses regret and inability to do something. Used to politely refuse requests or invitations in a considerate tone.
Example dialogue
¿Puedes asistir a la reunión mañana?
Can you attend the meeting tomorrow?
Lo siento, no podré asistir a la reunión mañana.
I'm sorry but I won't be able to attend the meeting tomorrow.