Imagine you walk into your Spanish class and proudly announce:
“Yo estoy la oficina”
“Yo voy mi casa”
Uh-oh.
Your teacher stares at you as if you had just told them the moon is made of cheese.
Why? Because without the right little connector words, you sound like a Spanish-speaking caveman. But don’t worry, there’s an easy fix! Sometimes, all you need is one tiny letter to go from “me Tarzan” to “me fluent.”
That magic comes from prepositions, the words that glue your sentences together and make them sound like real Spanish. They’re the Spanish equivalents of words like to, of, and in in English.
Today, we’re going to zoom in on three of the most common Spanish prepositions: A, DE, and EN.
These little words are everywhere in Spanish; once you see them, you can’t unsee them.
Let’s break them down one by one so you can use them with confidence and never again say “Voy mi casa.”
The Mighty “A”
Yes, it’s just the letter “A,” but don’t be fooled, this tiny preposition is a big deal.
In English, “A” can mean “to” or “at,” and in Spanish, it appears in numerous situations. Let’s start with the three most common uses.
1. Movement: Going to a place
Whenever you’re heading somewhere, you need ‘’A’’’ to connect the action to your destination.
- Voy a mi casa. - I’m going to my house. (This is perfect!)
- Voy mi casa. - I’m going my house. (Ouch. That hurts my ears.)
Think of A as the bridge between where you are and where you’re going.
2. Time: At a specific hour
If you’re saying that when something happens, A is your best friend.
- Llegué a las 3 pm. - I arrived at 3 pm.
It’s that simple. The moment you’re talking about a specific clock time, bring in A.
3. Direct or indirect objects (a.k.a. “The personal A”)
This is a very Spanish thing. In English, you say: I’m calling my brother. No preposition.
In Spanish, we sneak in an A before the person.
- Estoy llamando a mi hermano. - I’m calling my brother.
Even though English doesn’t have it here, Spanish needs it. Think of it as giving your sentence an extra handshake of politeness.
The Helpful “DE”
If A takes you places, DE tells you where you’re from, who owns what, and what something’s made of.
In English, DE often translates as “from” or “of.” And again, there are three main uses you’ll hear all the time.
1. Origin: Where something or someone is from
- Mi profesor es de México. - My teacher is from Mexico.
Without DE, you’d be saying “My teacher is Mexico”… which, unless your teacher is a giant landmass, is just wrong.
2. Possession: Who something belongs to
- Este es el teléfono de José. - This is Jose’s phone.
It’s like putting a little name tag on something. In Spanish, before you say the owner’s name, you slip in DE.
3. Description or material: What something’s about or made of
- Esta es una clase de español. - This is a Spanish class.
- Una mesa de madera. - A wooden table.
Whenever you’re describing the content (class of Spanish) or material (table of wood), you’ll want DE.
The Versatile “EN”
EN is the Swiss Army Knife of prepositions. It can mean in, on, at, or even by depending on the context.
But again, don’t panic, we’ll stick to three everyday uses that cover most situations.
1. Location: Being somewhere
- Ellos están en la escuela. - They are at school.
Here, EN is your go-to for saying where someone or something is located in general.
2. Time: Duration or how soon something happens
- Nos vemos en 20 minutos. - See you in 20 minutes.
Careful here, this is different from A las 3.
EN is for “in how much time” something happens, not the exact clock time.
3. Transportation: How you travel
- Viajamos en avión. - We’re traveling by plane.
- Viajamos en carro, en barco, en bicicleta, etc.
If you can ride it, fly it, or sail it, you probably need EN.
Why These Three Common Spanish Prepositions Matter So Much
Think about it: without A, DE, and EN, half your Spanish sentences would sound like missing puzzle pieces.
They’re short, yes, but they carry huge meaning:
- ‘’A’’ points you in a direction.
- ‘’DE’’’ tells you the origin, ownership, or composition.
- ‘’EN’’ puts you in a place, a time frame, or a mode of travel.
These three are the foundation stones. Master them, and your Spanish instantly sounds smoother, clearer, and way more natural.

The Truth About Spanish Prepositions
Here’s the thing: A, DE, and EN are just the tip of the iceberg. There are no fewer than twenty prepositions in Spanish, and each has its own little quirks.
But if you nail these three first, you’ll already handle the vast majority of situations you face as a beginner or even intermediate learner.
In other words: before worrying about entre, sobre, or hacia, make sure these three are second nature.
Common Mistakes to Avoid
Even once you know them, here are a few traps learners fall into:
- Forgetting the “personal A” before a person in a sentence. (Llamo mi madre - Llamo a mi madre)
- Mixing up EN and A for time expressions. Remember: EN for duration (in 20 minutes), A for clock times (at 3 pm).
- Translating literally
from english when talking about possessions. (María libro - El libro de María )
If you want to stop sounding like a tourist with a phrasebook and start speaking like someone who gets Spanish, learning these most used Spanish prepositions is the fastest shortcut.
They’re not glamorous. They’re not long, fancy words. But they’re the glue holding your sentences together.
So the next time you’re about to say “Yo voy mi casa”, stop. Remember ‘’A mi casa.’’ Your Spanish (and your teacher) will thank you.
If you liked this breakdown, stay tuned—there’s a whole world of prepositions beyond these three. Part 2 is coming soon, and trust me, it’s going to be just as fun. ¡Hasta luego!