Prepositions relate one word to another and add a concrete idea within the sentence. They can indicate place, time, direction, cause, purpose, companionship, or instrument. In La taza está en la mesa, en unites está with la mesa and places the cup. If the preposition is removed, the relation disappears and the phrase becomes incomplete or changes meaning. They also appear in expressions like por el frío, para estudiar or con mi hermana.

The preposition goes in front of a noun, a pronoun or an infinitive: de Ana, con ellos, para comer. It does not change by gender or number. It is always used the same: a, de, en, con, por, para. It does not combine with the noun to agree, as adjectives do. That is why we say a los niños, not a different form of a for niñas or niños. When it introduces an infinitive, it forms a clear unit: antes de salir, sin pensar, para volver. In Preposiciones you can see the general role of these words within the sentence.

En, sobre, bajo and delante de place something in space. En marks location: La llave está en el cajón. Sobre indicates support or surface: El libro está sobre la mesa. Bajo signals a lower position: El gato duerme bajo la silla. Delante de puts something at the front part of another: El coche está delante de la casa. These prepositions answer the question where something is and are used with names of places, objects, and people. To see them in more contexts, consult Preposiciones de Lugar.

A, hacia and hasta present a displacement. A marks destination: Voy a la biblioteca. Hacia indicates direction without necessarily reaching the end: Caminamos hacia el río. Hasta marks the end point of the journey: Corrió hasta la puerta. With verbs of movement, the preposition usually goes after the verb and before the destination. If you change the preposition, the route changes: it is not the same to go a place as to advance hacia it or arrive hasta it. This kind of use appears frequently in Preposiciones de Dirección.

En, desde, hasta and durante place an action in time. En is used with months, years, seasons and parts of the day: en julio, en 2026, en la mañana. Desde marks the starting point: Trabajo desde enero. Hasta indicates the final limit: Estudia hasta las ocho. Durante indicates the full span in which something occurs: Durmió durante el viaje. These prepositions form very common expressions with dates, times and periods. In Preposiciones de Tiempo they appear in more detail and with more combinations.

De and desde express origin, provenance or starting point. De usually indicates where someone is from or where something comes from: Soy de México, El tren viene de Sevilla. Desde marks the exact starting point and is associated with distance or the start of an action: Miró desde la ventana, Te llamo desde la oficina. De can indicate belonging or material in addition to origin, while desde maintains the idea of start. For location and trajectory, desde works with more precision than de. These differences also appear in Preposiciones de Dirección and in Preposiciones de Lugar.

Many verbs require a specific preposition to complete their sense. It is said pensar en, soñar con, depender de, insistir en, consistir en, contar con. The preposition is not chosen freely, because it is part of the verb. Pienso en ti does not use the same preposition as confío en ti or cuento con ella. Some verbs change meaning depending on the preposition: acordarse de does not work the same as acordar. In these constructions, the verb + preposition + complement is learned as a unit. Fixed combinations are also common with the Locuciones prepositivas.

A prepositional phrase is a fixed combination of words that acts as a single preposition: debajo de, encima de, frente a, junto a, en medio de, a pesar de. In El banco está frente a la estación, frente a fulfills the function of a complete preposition. It is not interpreted word by word, but as a stable unit. These phrases introduce complements just like a simple preposition and usually keep a fixed form. They appear frequently in descriptions of space, contrast and relationship between ideas.

A preposition can retain a concrete sense or be used more abstractly. In La taza está en la mesa, en expresses real place. In En verano hace calor, en situates in time. But in Confío en ti or Está en peligro, the relation is no longer spatial. The same happens with por in por la mañana or por tu ayuda, and with con in con cuidado or con tristeza. The form remains, but the meaning broadens to express cause, manner, condition, or relation. The value of the preposition depends on the verb and the context.

Some prepositions change according to region or formality level. In everyday speech, sometimes de is omitted in expressions like Antes salir in certain informal registers, though the full form is antes de salir. Differences also arise such as pensar en versus local uses with other constructions, or the suppression of a in greetings and fixed expressions. In general Spanish, the required preposition is kept in careful writing and formal use. When a fixed expression requires it, it is not omitted. These combinations relate to Locuciones preposicionales and to the patterns of Preposiciones de Tiempo.

a pordeal

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Se usa a por en el habla cotidiana para expresar movimiento con intención de recoger algoSe usa al con mucha frecuencia en expresiones cotidianas para marcar destino o movimientoEn el habla rápida a veces se omite una preposición cuando el contexto ya la deja clara

Variantes regionales en el uso cotidiano

Region	Variant	Definition	Example
Mexico	al	al is used very frequently in everyday expressions to mark destination or movement.	Voy al mercado con una piñata.
Spain	a por	a por is used in everyday speech to express movement with the intent to pick something up.	Salgo a por el pan y vuelvo enseguida.
Argentina	de	In rapid speech a preposition is sometimes omitted when the context already makes it clear.	Vengo de casa de mi tía con alfajores.

Scramble