Spanish learning guide
Spanish Conjunctions: Essential Words and Examples
What are conjunctions in Spanish? Learn the most common conjunctions with clear examples, plus when to use pero vs sino, y vs e, and o vs u.
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If your Spanish sometimes feels choppy, conjunctions are usually the missing piece.
Conjunctions are short connecting words like y (and), pero (but), and porque (because). They link ideas so your sentences sound natural instead of disconnected.
This guide explains what conjunctions in Spanish are, how to use the most common ones, and where learners usually make mistakes. If you want more advanced connectors for storytelling, check out our guide to Spanish transition words and connectors.
What Are Conjunctions in Spanish?
Spanish conjunctions are words that connect:
- words: pan y queso
- phrases: en casa o en la oficina
- clauses: No fui porque estaba cansado
In practice, conjunctions help you explain reasons, show contrast, add details, and present options.
Why Conjunctions Matter
Imagine trying to explain why you’re late to a friend using only basic vocabulary:
Without conjunctions: Perdón. Llego tarde. Había tráfico. Mi carro no funcionaba. With conjunctions: Perdón que llegue tarde, pero había mucho tráfico y además mi carro no funcionaba bien.
The second version sounds smoother because the ideas are connected.
5 Conjunctions You Will Use Most
If you learn these first, you can handle most everyday conversations.
1. Pero vs Sino
This is one of the most common learner mistakes. Here is the core rule:
Examples that work:
- Me gusta la pizza, pero no la hawaiana. (I like pizza, but not Hawaiian.)
- No quiero pizza, sino tacos. (I don’t want pizza, but rather tacos.)
Common mistake:
- ❌ Me gusta la pizza, sino no la hawaiana.
- ❌ No quiero pizza, pero tacos.
Quick Quiz
1. Me gustan las películas, ___ no me gustan las de terror. (Choose: pero/sino)
Show Answer
2. No quiero café, ___ té. (Choose: pero/sino)
Show Answer
3. Ella es inteligente, ___ a veces perezosa. (Choose: pero/sino)
Show Answer
4. No es médico, ___ enfermero. (Choose: pero/sino)
Show Answer
5. Estudio español, ___ es difícil. (Choose: pero/sino)
Show Answer
2. Y (and)
Y is everywhere, but it changes form to sound better:
Y → E when the next word starts with “i” or “hi” sound:
- Padre e hijo (not “padre y hijo”)
- Agua e hielo (not “agua y hielo”)
Common examples you’ll hear:
- ¿Vamos al cine o quedamos en casa? (movies or staying home?)
- Necesito pan, leche e ingredientes para la cena. (bread, milk and ingredients)
3. O (or)
O → U when the next word starts with “o” or “ho”:
- Siete u ocho personas (not “siete o ocho”)
- Mujer u hombre (not “mujer o hombre”)
4. Porque (because)
This one’s straightforward—use it exactly like “because” in English:
- No fui porque estaba enfermo. (I didn’t go because I was sick.)
- Me gusta porque es divertido. (I like it because it’s fun.)
5. Aunque (although/even though)
Use this when you want to say “even though” or “although”:
- Voy a salir aunque llueva. (I’m going out even though it’s raining.)
- Me gusta la película, aunque es larga. (I like the movie, although it’s long.)
Useful Conjunctions to Add Next
After the core five, these are useful to add:
Level-Up Conjunctions
Casual Conversation
Polite Disagreement
Real Conversation Examples
Here’s how these conjunctions sound in actual conversations:
Scenario 1: Making Weekend Plans
María: ¿Quieres ir al cine o prefieres quedarte en casa? Juan: Me gustaría ir al cine, pero no tengo dinero. María: No te preocupes, yo invito. Además, hay una película nueva que quiero ver. Juan: Perfecto, aunque prefiero comedias que dramas.
Scenario 2: Explaining Why You’re Late
Perdón que llegue tarde. Salí temprano de casa, pero había mucho tráfico en la avenida principal. Además, paré por gasolina y la fila estaba larguísima. Así que decidí tomar otra ruta, aunque era más larga.
Scenario 3: Polite Disagreement
Ana: Creo que deberíamos ir a la playa este fin de semana. Luis: Me gusta la idea; sin embargo, el pronóstico dice que va a llover. Ana: Es cierto, pero podríamos ir aunque llueva un poco. Luis: No sé… prefiero no ir a la playa, sino al museo. O sea, podemos hacer algo interior.
Common Mistakes (And How to Fix Them)
Mistake #1: Confusing “Pero” and “Sino”
The Problem: Most English speakers use “pero” for everything because it seems like “but.”
Wrong: No quiero café, pero té.
Right: No quiero café, sino té.
Quick Fix: If you can replace it with “but rather” in English, use “sino” in Spanish.
Mistake #2: Forgetting Sound Changes
The Problem: Saying “y” when it sounds awkward.
Wrong: Madre y hijo (sounds clunky)
Right: Madre e hijo (flows naturally)
Quick Fix: If saying “y” + the next word creates an awkward “ee” sound, change it to “e.”
Mistake #3: Overusing Formal Conjunctions
The Problem: Using fancy words in casual conversation.
Sounds Weird: Quiero pizza; no obstante, también me gusta la pasta.
Sounds Natural: Quiero pizza, pero también me gusta la pasta.
Quick Fix: Save the fancy words (sin embargo, no obstante) for when you want to sound polite or formal.
Practice Exercises
Exercise 1: Fix the Conjunction
Rewrite these into natural Spanish:
- Quiero ir, pero no tengo tiempo, pero también estoy cansado.
- No me gusta el café, pero té.
- Es bonito y inteligente.
Better versions:
- Quiero ir, pero no tengo tiempo y además estoy cansado.
- No me gusta el café, sino el té.
- Es bonito e inteligente.
Exercise 2: Conversation Builder
Practice with a friend or imagine conversations using these prompts:
- Explain why you can’t go to a party (use: pero, porque, además)
- Disagree politely with someone’s movie recommendation (use: sin embargo, aunque)
- Describe your perfect weekend (use: y/e, o/u, pero)
Quick Quiz
1. Me gusta la playa, ___ prefiero las montañas. (Choose the best conjunction)
Show Answer
2. No quiero pizza, ___ hamburguesas. (Choose: pero/sino)
Show Answer
3. Estaba cansado, ___ me quedé despierto viendo Netflix. (Choose: pero/así que)
Show Answer
4. Vamos al cine ___ nos quedamos en casa. (Choose: y/o)
Show Answer
5. Es inteligente ___ trabajador. (Choose: y/e)
Show Answer
Regional Notes
Latin America vs Spain
“Así que” vs “Entonces”
- Latin America: Estaba lloviendo, así que me quedé en casa.
- Spain: Estaba lloviendo, entonces me quedé en casa.
Both are correct, but knowing the difference helps you sound more natural in different regions.
Casual Fillers That Act Like Conjunctions
“O sea” - Super common in Latin America:
- No me gustó la película, o sea, fue aburrida.
- Llegué tarde, o sea, había tráfico.
“Pues” - More common in some regions:
- No fui, pues estaba enfermo.
These expressions overlap with conversation management more than grammar. See the full guide to Spanish filler words for regional notes and examples of how to pause or repair an idea naturally.
A Simple 4-Week Practice Plan
Week 1: Focus on pero vs sino. Every time you say “but,” ask: contrast or correction?
Week 2: Practice sound changes: y -> e and o -> u.
Week 3: Add porque, aunque, and así que in daily speaking.
Week 4: Add sin embargo, además, and o sea.
Daily practice: Pick one conjunction and use it in 3 short sentences.
To turn those sentences into real-time retrieval practice, use the routine in how to practice speaking Spanish.
Quick Reference
These are the conjunctions you will use most often:
Essential Conjunctions
Basic Connections:
- y (and) → e before “i/hi” sounds
- o (or) → u before “o/ho” sounds
- pero (but) - for contrast
- sino (but rather) - for correction after negative
- porque (because)
- aunque (although/even though)
Level Up:
- así que (so/therefore)
- por eso (that’s why)
- además (besides/also)
- sin embargo (however - polite)
- en cambio (on the other hand)
- o sea (I mean - casual)
When to Use Each One
The Bottom Line
You do not need to memorize dozens of conjunctions to sound natural in Spanish. You need to use the most common ones correctly and consistently.
Start with pero vs sino. Then add the sound changes (y -> e, o -> u). Those two steps alone improve your Spanish quickly.
Then build from there with porque, aunque, and así que.
Use these conjunctions inside the scenarios in our conversational Spanish practice guide rather than memorizing them as isolated vocabulary.
When you use these connectors to tell stories, our guide to the preterite vs imperfect will help you choose the right past tense for each event and detail.
Practice Spanish Conjunctions with AI Conversation
Practice these conjunctions in real conversations with Amigo Lingo and get feedback on how naturally you connect ideas.
Start Conversation PracticeCommon Questions About Spanish Conjunctions
When do I use 'pero' vs 'sino'?
Why do 'y' and 'o' sometimes change to 'e' and 'u'?
Should I use formal conjunctions like 'sin embargo' in casual conversation?
What's the difference between 'así que' and 'por eso'?
Ready to Sound Like a Native?
Mastering Spanish conjunctions is mostly about repetition in real conversations. Start with the core set, use them daily, and add new ones gradually.
Remember: pero vs sino is the most important distinction to lock in early.
¡A practicar! (Let’s practice!)