The Spanish Gerundio: -ando and -iendo Forms Explained
You know the feeling: you want to say “I like swimming” or “learning Spanish takes time,” you reach for the -ando or -iendo form because it looks just like the English -ing — and a native speaker gently corrects you. It happens constantly, because English and Spanish use these forms very differently. The gerundio is not a direct translation of -ing, and the overlap is just close enough to be a reliable trap.
Quick answer: The Spanish gerundio is formed by adding -ando to -ar verb stems and -iendo to -er/-ir verb stems. It functions primarily in progressive constructions with estar, and with verbs like seguir, continuar, and llevar. Unlike English, it cannot be used as a noun or adjective in standard Spanish.
How to form the gerundio
Regular -ar verbs: add -ando
Drop the -ar and add -ando.
| Infinitive | Stem | Gerundio |
|---|---|---|
| hablar | habl- | hablando |
| caminar | camin- | caminando |
| trabajar | trabaj- | trabajando |
| estudiar | estudi- | estudiando |
Regular -er and -ir verbs: add -iendo
Drop the -er or -ir and add -iendo.
| Infinitive | Stem | Gerundio |
|---|---|---|
| comer | com- | comiendo |
| beber | beb- | bebiendo |
| vivir | viv- | viviendo |
| escribir | escrib- | escribiendo |
At this stage, the goal is not just recognizing the pattern but producing it without hesitation. That’s why in VerbPal we push active recall: typing hablando or escribiendo from memory builds a different skill than simply spotting the right answer in a list. Our custom drills make you generate the form, which is exactly what real conversation demands.
Action step: Take five common verbs you use often and write their gerundios from memory. If you miss any, run them through VerbPal’s interactive conjugation charts and then type them again without looking.
Irregular gerundios
Several common verbs have irregular gerundio forms. Most of the irregulars involve stem changes that carry over from the present indicative.
-ir stem-changing verbs
When the infinitive is an -ir verb with an e→i or o→u stem change, that same change appears in the gerundio. VerbPal’s per-form tracking treats each irregular gerundio as its own item — so if you keep getting pudiendo wrong but siguiendo right, those two forms will be on different review schedules.
| Infinitive | Gerundio |
|---|---|
| decir | diciendo |
| pedir | pidiendo |
| seguir | siguiendo |
| servir | sirviendo |
| venir | viniendo |
| dormir | durmiendo |
| morir | muriendo |
| poder | pudiendo |
Verbs where -iendo becomes -yendo
When the verb stem ends in a vowel, adding -iendo would create three consecutive vowels. Spanish resolves this by changing the i to y.
| Infinitive | Gerundio |
|---|---|
| leer | leyendo |
| oír | oyendo |
| caer | cayendo |
| traer | trayendo |
| huir | huyendo |
| construir | construyendo |
The verb ir
Ir is its own case: the gerundio is yendo — not iendo.
Estaba yendo al trabajo cuando me llamaste. (I was going to work when you called me.)
The -yendo gerundios tend to catch learners off guard because they look unfamiliar. A quick pattern check: if the verb stem ends in a vowel (le-, o-, ca-, tra-), expect -yendo instead of -iendo. Say it aloud and you'll hear why — le-iendo is a clash; leyendo flows.
Because these forms are high-frequency, they deserve focused review. In VerbPal, irregulars are not treated as a side note: they are built into the same spaced repetition system we use across all tenses, irregulars, reflexives, and the subjunctive, so the forms you miss come back at the right interval instead of disappearing after one session.
Pro tip: Group irregular gerundios by pattern, not alphabetically: stem-changers like durmiendo and pidiendo, then vowel-stem forms like leyendo and trayendo. That makes the logic easier to remember.
Use 1: The progressive tenses (estar + gerundio)
The most common use of the gerundio is with estar to form progressive constructions — the equivalent of “to be doing something.”
Present progressive:
Estoy estudiando para el examen. (I’m studying for the exam.)
¿Qué estás haciendo? (What are you doing?)
Past progressive (imperfect + gerundio):
Estaba leyendo cuando llegó. (I was reading when she arrived.)
Estaban durmiendo a las tres de la tarde. (They were sleeping at three in the afternoon.)
Important note: Spanish uses the present progressive less often than English. For habitual or planned actions, Spanish prefers the simple present. Trabajo mañana. (I’m working tomorrow.) is more natural than Estoy trabajando mañana. (I’m working tomorrow.) in most contexts. Getting the feel for when to use estar + gerundio vs the simple present comes from exposure and practice — VerbPal’s timed drills surface both patterns so that the right form comes out automatically rather than by conscious decision.
Action step: Write two pairs of sentences: one with the simple present and one with estar + gerundio. Then ask yourself whether the action is habitual, scheduled, or truly in progress right now.
Use 2: seguir and continuar + gerundio
Seguir and continuar combine with the gerundio to mean “to keep doing” or “to continue doing.”
Sigue estudiando aunque es tarde. (She keeps studying even though it’s late.)
¿Sigues viviendo en Madrid? (Are you still living in Madrid?)
Continuaron hablando hasta la medianoche. (They continued talking until midnight.)
These combinations matter because they show that the gerundio is not limited to estar. If you only memorize estar + gerundio, you’ll understand the rule but miss a big part of how Spanish actually uses it. We build this contrast directly into VerbPal drills so learners practice está leyendo, sigue leyendo, and continúa leyendo as separate production tasks rather than one vague “progressive” idea.
Pro tip: When you learn a gerundio, learn it inside a chunk: seguir estudiando, continuar hablando, estar leyendo. Chunks are easier to retrieve than isolated forms.
Use 3: llevar + time + gerundio
This construction expresses how long someone has been doing something. It’s one of the most useful and distinctively Spanish patterns.
Llevo tres años estudiando español. (I’ve been studying Spanish for three years.)
¿Cuánto tiempo llevas esperando? (How long have you been waiting?)
Llevaba dos horas trabajando cuando me interrumpió. (I had been working for two hours when she interrupted me.)
This is exactly the kind of structure that falls apart under pressure if you have only “seen it before.” Knowing the rule is one thing — producing it under pressure is another. That’s the gap our drills are built to close. With VerbPal, you can rehearse time-based patterns like llevo dos semanas practicando until they come out as a unit, and our SM-2 spaced repetition scheduling keeps bringing back the forms that are not stable yet.
If lleva + time + gerundio still feels unnatural, don't just reread the rule. Produce it. Type five real sentences about your own life, then review them until the pattern stops feeling translated from English and starts feeling automatic.
Practice it in VerbPal →Action step: Write three sentences with llevar + time + gerundio about your own routines. Personal examples stick better than generic textbook ones.
Use 4: The gerundio as a modifier (with caution)
The gerundio can modify verbs by expressing how or in what manner an action is performed — but only when the subject is the same for both actions.
Salió corriendo de la habitación. (She ran out of the room.)
Llegó cantando. (He arrived singing.)
Paso las tardes leyendo. (I spend my afternoons reading.)
The key check is subject control: the person doing the main action must also be doing the gerund action. If that relationship is unclear, the sentence starts to sound wrong fast.
Pro tip: Test the sentence by asking, “Who is doing both actions?” If the answer is not the same person, rewrite it.
The most common mistake: using the gerundio as a noun
In English, the -ing form doubles as a verbal noun: “Swimming is fun,” “I enjoy reading.” In Spanish, this is wrong. When you need a noun, use the infinitive, not the gerundio.
| English -ing as noun | Wrong Spanish | Correct Spanish |
|---|---|---|
| Swimming is fun | Nadar es divertido | |
| I enjoy reading | Me gusta leer | |
| Learning Spanish takes time | Aprender español lleva tiempo |
This is one of the clearest points where English transfers badly into Spanish. Every time you want to use an -ing form as the subject or object of a sentence, replace it with an infinitive. Lexi surfaces this pattern mid-session if you’ve been getting gerundio-as-noun errors — it’s one of the most common mistakes VerbPal’s tracking picks up from learners coming from English.
A quick self-check: if you're about to use a gerundio, ask whether it's working with a verb (estar, seguir, llevar) or standing alone as a noun. If it's alone as a noun — "___ing is…" or "I like ___ing" — switch to the infinitive. The gerundio always needs a verb supporting it.
If this is your recurring error, don’t solve it with more reading alone. Build a contrast set: me gusta leer vs estoy leyendo, nadar es difícil vs está nadando. In VerbPal, that kind of side-by-side production practice is where the distinction starts to hold.
Action step: Convert five English sentences with “-ing” into Spanish and decide: infinitive or gerundio? If the form is acting like a noun, choose the infinitive.
Frequently asked questions
Can the gerundio ever be used as an adjective?
Very rarely, and only in a few fixed expressions. In general, using the gerundio adjectivally is either incorrect or highly formal. For example, agua hirviendo (boiling water) is accepted, but this is a fixed phrase. In everyday Spanish, use an adjective or a relative clause instead of a gerundio to modify a noun.
Is estar + gerundio always the best way to say something is happening right now?
Not necessarily. Spanish often uses the simple present where English would use the progressive. ¿Qué haces? (What are you doing?) is completely natural — the present tense covers ongoing action too. The estar + gerundio construction adds emphasis on the action being in progress at this very moment.
What’s the difference between seguir + gerundio and continuar + gerundio?
They’re almost interchangeable. Seguir is more colloquial and appears more frequently in spoken Spanish. Continuar is slightly more formal and appears more in writing. In everyday conversation, you’ll hear seguir far more often.
Do object pronouns attach to the gerundio?
Yes — when the gerundio is used with estar or another auxiliary, you can either attach the pronoun to the gerundio or place it before the conjugated verb. Both are correct: Estoy haciéndolo (I am doing it.) = Lo estoy haciendo. (I am doing it.) The second option, pronoun before the conjugated verb, is often easier to produce in fast speech.
How does the llevar + gerundio construction work in the preterite?
Llevar in the preterite with a gerundio expresses how long something had been happening up to a moment in the past: Llevaba una hora esperando cuando por fin llegó el autobús. (I had been waiting for an hour when the bus finally arrived.) The imperfect of llevar + gerundio is the standard form for this meaning.