Spanish language Q&A Forum

Hola,

I've seen this pattern and just learned it by rote, but I'm wondering why when I see venir and salir, and probably others I can't recall right now, the preposition follows the verb?

Usted normalmente sale a comer a las dos. (You usually go out to eat at two o'clock.)

Why isn't it sale comer a las dos, or Vienen nadar todos los domingos? 

I guess some rule has bypassed me at some point? What I'm most concerned is that past venir and salir, I'm going to get it wrong with other verbs.

Muchas gracias,

The example 'Sierra Nevada se encuentra en la provincia de Granada.' seems to me to suggest passive 'se' rather than reflexive. Perhaps because I tend to translate it as 'is found' (passive). Is that an accurate translation?

Also, I've got in the habit of using the Latin American ubicar and estar ubicado. Are these considered incorrect in Spain?

Saludos