grammar.prepositions.a-uses
The preposition a: direction, time, manner
Direction (voy a Lima), clock time (a las tres), distance (a dos cuadras), rate (a 90 km/h), manner (a mano, a pie), and the marker of indirect objects.
grammarA2v0.1.0
Explication
Core map: movement toward (llegamos a Tarija), points in time (a mediodía, al final), distance/position (a la derecha, a 10 km), rate and price (a dos por uno), manner phrases (a pie, a mano, a tiempo).
It introduces indirect objects (le di el libro a Juan) and the personal a, and glues many verbs to their complement — see verbs with a. Plus al + infinitive = 'upon doing': al llegar, llámame.
Exemples
La reunión es a las nueve.
The meeting is at nine.
The meeting is at nine.
Région: global
Al salir, apaga la luz.
When you leave, turn off the light.
When you leave, turn off the light.
Région: global