Servir — "to serve" — is the prototypical e > i stem-changer of Spanish. The pattern is simple and uniform: the e of the stem becomes i wherever the stem is stressed, which means everywhere in the present indicative except nosotros and vosotros (sirvo, sirves, sirve, servimos, servís, sirven), throughout the present subjunctive, in the él/ellos preterite (sirvió, sirvieron), in the gerund (sirviendo), and across the imperfect subjunctive. The change is exclusively a property of -ir verbs — no -ar or -er verb in Spanish shows e > i.
The verb has a wider semantic range than its English counterpart. Servir covers serving food and drinks (¿Te sirvo más vino?), serving in a role or job (sirvió en el ejército), and a second sense English doesn't share at all: to be useful, to work, to do the job (este boli no sirve — "this pen doesn't work"; no sirve para nada — "it's no use for anything"). Mastering servir means mastering both senses and the prepositions they take.
Non-finite forms
| Form | Spanish | English |
|---|---|---|
| Infinitivo | servir | to serve / to be useful |
| Infinitivo compuesto | haber servido | to have served |
| Gerundio | sirviendo | serving |
| Gerundio compuesto | habiendo servido | having served |
| Participio | servido | served |
The gerund sirviendo carries the e > i shift — the ending -iendo begins with a stressed -i-, and the stem vowel reduces from e to i in concord. The participle servido is regular (the stress falls on -i- of -ido, so the stem stays as e). Compare durmiendo (from dormir, o > u) — same mechanism, different vowel.
Indicative — simple tenses
Presente
The classic e > i "boot." The stem is sirv- wherever stressed, serv- in nosotros and vosotros.
| yo | tú | él/ella/usted | nosotros | vosotros | ellos/ellas/ustedes |
|---|---|---|---|---|---|
| sirvo | sirves | sirve | servimos | servís | sirven |
En este bar sirven unas tapas buenísimas, ya verás.
They serve great tapas in this bar — you'll see.
¿Te sirvo un poco más de vino o ya está bien?
Shall I pour you a bit more wine, or have you had enough?
Este móvil ya no me sirve, la batería dura una hora.
This phone is no use to me anymore — the battery only lasts an hour.
Pretérito perfecto simple
Servir is an -ir stem-changer, so the 3rd-person singular and 3rd-person plural shift e > i in the preterite. The other persons keep e.
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| serví | serviste | sirvió | servimos | servisteis | sirvieron |
Note that nosotros servimos is identical in the present and the preterite — context picks the reading. This collision happens with every -ir verb.
Mi abuelo sirvió treinta años en la Marina.
My grandfather served thirty years in the Navy.
Sirvieron la comida fría y nos quejamos al camarero.
They served the food cold and we complained to the waiter.
Pretérito imperfecto
Perfectly regular -ir imperfect, no stem change. The imperfect is for habits, ongoing service, and background description.
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| servía | servías | servía | servíamos | servíais | servían |
Antes en aquel restaurante servían un menú del día por seis euros.
That restaurant used to do a set lunch menu for six euros.
Futuro simple
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| serviré | servirás | servirá | serviremos | serviréis | servirán |
Esto no nos servirá de nada si no llega a tiempo.
This won't do us any good if it doesn't arrive on time.
Condicional
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| serviría | servirías | serviría | serviríamos | serviríais | servirían |
¿Te serviría un café o prefieres una infusión?
Would a coffee work for you, or would you rather have a herbal tea?
Indicative — compound tenses
All compound tenses pair haber with the regular participle servido.
Pretérito perfecto compuesto
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| he servido | has servido | ha servido | hemos servido | habéis servido | han servido |
Esta tarde he servido más de cien cafés, estoy reventado.
This afternoon I've served more than a hundred coffees — I'm wrecked.
Pretérito pluscuamperfecto
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| había servido | habías servido | había servido | habíamos servido | habíais servido | habían servido |
Cuando llegamos ya habían servido el primer plato.
When we arrived they'd already served the first course.
Futuro compuesto
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| habré servido | habrás servido | habrá servido | habremos servido | habréis servido | habrán servido |
Condicional compuesto
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| habría servido | habrías servido | habría servido | habríamos servido | habríais servido | habrían servido |
De haberlo sabido, te habría servido yo la cena.
Had I known, I would have served you dinner myself.
Subjunctive — simple tenses
Presente de subjuntivo
The present subjunctive of -ir e > i verbs has the i stem everywhere — including nosotros and vosotros. This is one of the key contrasts with -ar and -er stem-changers, whose subjunctive nosotros/vosotros keep the unchanged stem.
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| sirva | sirvas | sirva | sirvamos | sirváis | sirvan |
Espero que esta receta te sirva para esta noche.
I hope this recipe works for you tonight.
Por favor, que nos sirvan ya, llevamos media hora esperando.
Please, let them serve us already — we've been waiting half an hour.
Imperfecto de subjuntivo (-ra / -se)
Built on the 3rd-plural preterite stem sirv-. Both -ra and -se sets are available; -ra dominates spoken Spain.
| yo | tú | él | nosotros | vosotros | ellos | |
|---|---|---|---|---|---|---|
| -ra | sirviera | sirvieras | sirviera | sirviéramos | sirvierais | sirvieran |
| -se | sirviese | sirvieses | sirviese | sirviésemos | sirvieseis | sirviesen |
Si esta llave sirviera, ya habríamos entrado.
If this key worked, we'd already be inside.
Subjunctive — compound tenses
Pretérito perfecto de subjuntivo
| yo | tú | él | nosotros | vosotros | ellos |
|---|---|---|---|---|---|
| haya servido | hayas servido | haya servido | hayamos servido | hayáis servido | hayan servido |
Me alegra que esta conversación te haya servido para algo.
I'm glad this conversation has been useful to you for something.
Pluscuamperfecto de subjuntivo
| yo | tú | él | nosotros | vosotros | ellos | |
|---|---|---|---|---|---|---|
| -ra | hubiera servido | hubieras servido | hubiera servido | hubiéramos servido | hubierais servido | hubieran servido |
| -se | hubiese servido | hubieses servido | hubiese servido | hubiésemos servido | hubieseis servido | hubiesen servido |
Imperative
| Form | Affirmative | Negative |
|---|---|---|
| tú | sirve | no sirvas |
| usted | sirva | no sirva |
| nosotros | sirvamos | no sirvamos |
| vosotros | servid | no sirváis |
| ustedes | sirvan | no sirvan |
The affirmative vosotros servid is built on the infinitive (drop the -r, add -d) — note that this form keeps the e of the infinitive, not the i of the stem-change. The -d drops only when reflexive pronouns attach (which is rare for non-reflexive servir).
In a restaurant or service context the imperatives sirva and sírvame are the standard polite forms: Sírvame un café, por favor — "Could I have a coffee, please." Note the written accent on sírvame when the pronoun attaches.
Sírveme otra caña, anda.
Pour me another beer, would you.
Sirvan a los señores de la mesa cinco.
Serve the gentlemen at table five. (to staff)
The core senses of servir
1. To serve food, drinks, customers
The most concrete sense. Servir takes a direct object (the thing being served) and often an indirect object (the recipient).
En este restaurante sirven el cocido todos los miércoles.
At this restaurant they serve cocido every Wednesday.
¿Os sirvo agua o preferís un refresco?
Shall I pour you all water or would you rather have a soft drink?
2. Servir para — to be useful for, to work for
This is the meaning English speakers most often miss. Servir para + noun or infinitive means "to be useful for / to be good for" — it's how Spanish talks about whether a tool, idea, or person does the job.
Este destornillador no sirve para los tornillos pequeños.
This screwdriver isn't any good for the small screws.
Estudiar idiomas sirve para abrir la mente.
Studying languages is good for opening your mind.
3. Servir de — to serve as, to function as
Closely related to servir para, but with a different preposition: servir de + noun means "to serve as / function as / act as." Used for roles, replacements, and metaphors.
Esta caja servirá de mesilla mientras tanto.
This box will do as a nightstand in the meantime.
Que su error nos sirva de lección a todos.
Let his mistake serve as a lesson to all of us.
4. Servirse de — to make use of (formal/literary)
The reflexive servirse de + noun means "to make use of, to avail oneself of." It's noticeably more formal than usar or utilizar and shows up mostly in writing.
El autor se sirve de la metáfora para suavizar la crítica.
The author uses metaphor to soften the criticism. (formal/academic)
High-frequency collocations from peninsular Spanish
| Phrase | Translation |
|---|---|
| ¿en qué puedo servirle? | (formal) how may I help you? — shops, hotels, offices |
| no servir para nada | to be completely useless |
| no servir de nada | to do no good, to be pointless |
| servir para algo | to be good for something |
| servir de excusa / ejemplo / pretexto | to serve as an excuse / example / pretext |
| servir(se) usted mismo | (formal) help yourself |
| servir bien / mal | to do a good / bad job |
| ¿le sirvo algo más? | (formal) anything else? (waiter to customer) |
The phrase no sirve de nada ("it does no good") is one of the most-used reactive expressions in spoken Spain — used to dismiss a futile action (No sirve de nada quejarse — "complaining gets you nowhere"). Pair it with the infinitive of the action that's pointless.
No sirve de nada llorar ahora, lo hecho hecho está.
There's no point crying now — what's done is done.
Buenas tardes, ¿en qué puedo servirles?
Good afternoon, how may I help you? (shop assistant)
Common Mistakes
❌ Yo servo en el bar de mi tío.
✅ Yo sirvo en el bar de mi tío.
I serve at my uncle's bar.
❌ Ella servió la cena anoche.
✅ Ella sirvió la cena anoche.
She served dinner last night.
❌ Este boli no funciona para nada.
For 'this pen is useless / no good for anything', use servir, not funcionar. Funcionar means 'to work mechanically' and doesn't combine with para nada in this idiomatic sense. The fixed phrase is no servir para nada.
✅ Este boli no sirve para nada.
This pen is useless. / This pen is no good.
❌ Estamos serviendo la comida ahora mismo.
✅ Estamos sirviendo la comida ahora mismo.
We're serving the food right now.
❌ ¿Para qué sirve esto por?
The preposition para already covers 'for' — don't add por at the end. ¿Para qué sirve esto?
✅ ¿Para qué sirve esto?
What's this for? / What does this do?
Key Takeaways
- Servir is an -ir e > i stem-changer. The diphthong-less change e > i hits the stressed-stem forms, the él/ellos preterite (sirvió, sirvieron), the gerund (sirviendo), the entire present subjunctive (sirva, sirvas, sirva, sirvamos, sirváis, sirvan), and the imperfect subjunctive.
- -Ar and -er verbs never show e > i — it is a property exclusive to -ir verbs, and not all -ir verbs have it (sentir is e > ie with secondary e > i; servir is plain e > i).
- Servir has three core senses plus a formal reflexive: (1) serve food/drinks/customers, (2) servir para — be useful for, (3) servir de — function as, plus the formal/literary servirse de — to make use of. English uses different verbs for each — Spanish uses one root.
- The reflexive servirse with the imperative is the formal "help yourself" — sírvanse ustedes, por favor.
- No sirve de nada and no servir para nada are everyday peninsular fixed phrases — use them for "it's no use" and "it's good for nothing" respectively.
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