Use a only in fixed verb patterns like ir a + infinitive, not as a free link between two verbs.
A lot of Spanish learners hit the same snag: they see a between verbs in one sentence, then try to drop it into every similar pattern. That’s where trouble starts. Spanish does use a between verbs, but only in certain structures. You can say voy a estudiar. You can say empezó a llorar. You can’t just place a between any two verbs and hope it works.
The clean way to think about it is this: the first verb decides whether a belongs there. If that first verb, or the full expression around it, calls for a, use it. If not, leave it out. Once you start sorting Spanish verbs by pattern instead of by guesswork, these sentences stop feeling random.
Why This Tiny Word Causes So Much Trouble
English nudges learners into mistakes here. In English, “to” often sits before a verb, so it feels normal to search for a Spanish twin. But Spanish a is not a universal marker for the infinitive. Many verb pairs go straight from one verb to the next with no preposition at all.
That contrast is the whole story. Compare these pairs:
- Quiero comer — correct, with no a
- Voy a comer — correct, with a
- Puedo salir — correct, with no a
- Aprendió a cocinar — correct, with a
So the question is not “Do two verbs need a?” The question is “Does this verb pattern require a?” That shift saves a pile of errors.
When to Use a Between Verbs in Spanish In Real Patterns
Spanish uses a between verbs in several common setups. The biggest one is the future-like construction ir a + infinitive. The RAE entry for ir notes that ir a + infinitivo works as a verbal structure that points to an action still to come. That gives you forms like voy a llamar, vamos a salir, and iba a decirte algo.
There are also many verbs and expressions that naturally take a before an infinitive. These are not random add-ons. They are part of the pattern itself.
Common Verb Patterns That Take A
These turn up all the time in speech, writing, songs, and class material:
- Ir a + infinitive:Voy a estudiar esta noche.
- Empezar a + infinitive:Empezó a llover.
- Aprender a + infinitive:Aprendí a nadar de niña.
- Ayudar a + infinitive:Me ayudó a ordenar el cuarto.
- Volver a + infinitive:Volvió a llamar.
- Ponerse a + infinitive:Se puso a reír.
- Acostumbrarse a + infinitive:Se acostumbró a trabajar temprano.
- Negarse a + infinitive:Se negó a firmar.
Some of these are classic verbal periphrases. Others are verbs followed by a preposition and an infinitive. For a learner, that split matters less than the result: the pattern must be learned as one unit. The RAE basic grammar on infinitive periphrases groups many of these structures and shows that the preposition is part of the form, not decoration.
One more trap: the same first verb does not always behave the same way in every setting. Ir can mean movement by itself, and it can also work as the helper in ir a + infinitive. That’s why context matters.
| Pattern | Example | What It Adds |
|---|---|---|
| ir a + infinitive | Voy a cocinar. | Near future, intention, or expected action |
| empezar a + infinitive | Empezó a correr. | Beginning of an action |
| volver a + infinitive | Volvió a leer el mensaje. | Repetition |
| ponerse a + infinitive | Se puso a llorar. | Sudden start |
| aprender a + infinitive | Aprenden a cocinar. | Skill being acquired |
| ayudar a + infinitive | Nos ayudó a limpiar. | Action made easier by someone |
| negarse a + infinitive | Se negó a responder. | Refusal |
| acostumbrarse a + infinitive | Me acostumbré a madrugar. | Habit becoming normal |
When You Should Not Use A Between Verbs
Plenty of Spanish verbs go straight into the infinitive with no preposition. This group is just as common, which is why guessing leads to mixed results. Verbs of desire, ability, duty, and preference often skip a.
Common Patterns With No A
These are plain, high-frequency pairings:
- querer + infinitive — Quiero dormir.
- poder + infinitive — Puedo entrar.
- deber + infinitive — Debes salir ya.
- necesitar + infinitive — Necesito estudiar.
- preferir + infinitive — Prefiero esperar.
- esperar + infinitive — Espero llegar temprano.
If you insert a into these, the sentence usually sounds off right away to a native speaker. Quiero a comer and puedo a salir are not standard Spanish. The trouble comes from overusing one pattern that happened to be right in another sentence.
Prepositions After Expressions, Not Just Verbs
Spanish also puts infinitives after set phrases that include prepositions. You’ll hear antes de salir, después de comer, and sin hablar. In those cases, the preposition belongs to the whole expression, not to a magical rule that says two verbs need a bridge. The Lingolia overview of Spanish prepositions shows this clearly with time expressions like antes de and después de followed by an infinitive.
That means you’re dealing with chunks: antes de + infinitive, not “verb + random preposition + verb.”
How To Tell Which Pattern You Need
You don’t need to memorize a phone book of rules on day one. A tighter method works better.
Use This Three-Step Check
- Look at the first verb or full expression.
- Ask whether that pattern is normally followed by a, another preposition, or nothing.
- Keep the infinitive untouched after that pattern.
Say you want to build “I’m going to study.” Start with ir used as a future structure. That pattern is ir a + infinitive, so you get voy a estudiar. Now try “I want to study.” Start with querer. That pattern is querer + infinitive, so you get quiero estudiar.
This is why memorizing verbs in chunks pays off. Don’t learn empezar by itself. Learn empezar a. Don’t learn volver by itself when you mean repetition. Learn volver a.
| English Idea | Wrong Spanish | Correct Spanish |
|---|---|---|
| I want to eat | Quiero a comer | Quiero comer |
| I’m going to eat | Voy comer | Voy a comer |
| She began to cry | Empezó llorar | Empezó a llorar |
| We can leave | Podemos a salir | Podemos salir |
| He learned to drive | Aprendió conducir | Aprendió a conducir |
| Before leaving | Antes salir | Antes de salir |
Common Mistakes That Give Learners Away
The biggest slip is adding a after every conjugated verb. That tends to happen after you’ve just learned ir a + infinitive and your brain starts copying the shape everywhere. Another slip is dropping a from patterns that do need it, such as empezar a or volver a.
There’s also a subtler mistake: mixing up true verb chains with expressions built around nouns, adjectives, or prepositions. Estoy listo para salir is not built the same way as voy a salir. Both are common. They just come from different sentence patterns.
A Good Study Habit
When you meet a new verb, write it down with its usual partner:
- aprender a
- empezar a
- dejar de
- pensar en + noun
- pensar + infinitive
- soñar con + noun
That habit cuts out guesswork. It also helps you sound smoother, since native Spanish runs on patterns more than on word-by-word assembly.
What Native-Like Spanish Sounds Like Here
Natural Spanish is not about stuffing in more little words. It’s about picking the right pattern and letting it do its job. If the structure is voy a llamar, say it whole. If the structure is quiero llamar, don’t force an extra a into it.
That’s the answer to When to Use a Between Verbs in Spanish: use a when the first verb or fixed expression requires it, and skip it when the pattern does not. Once you start learning those pairings as complete units, your Spanish gets cleaner, faster, and much more natural on the page and out loud.
References & Sources
- Real Academia Española (RAE).“ir, irse | Diccionario panhispánico de dudas.”Supports the use of ir a + infinitivo as a verbal structure that expresses an action still to come.
- Real Academia Española (RAE).“Perífrasis de infinitivo.”Backs the explanation that many verb-plus-infinitive structures include a fixed preposition as part of the pattern.
- Lingolia.“Prepositions in Spanish Grammar.”Supports the section on set expressions such as antes de + infinitivo and después de + infinitivo.