Compré el regalo para mi mamá.
To talk about a recipient or beneficiary of something (for)
I bought the gift for my mother.
Salieron para el monte.
To talk about a destination or direction toward a place (for)
They left for the mountains.
Este tenedor es para ensalada.
To express the purpose of something (for; in order to)
This fork is for salad.
Mi jefa quiere la presentación para el lunes.
To refer to a time deadline (for; by)
My boss wants the presentation for Monday.
Javier es muy maduro para su edad.
To make a “one-sided” comparison (for)
Javier is very mature for his age.