Spanish phrase
Se me complica.
Meaning
That won't work for me.
When to use it
Indicates a plan or request is not feasible for the speaker. Used to decline politely and informally, often followed by a brief reason or apology.
Example dialogue
¿Puedes cuidar a mi perro hoy?
Can you take care of my dog today?
Se me complica, surgió una reunión inesperada.
That won't work for me, an unexpected meeting came up.