Ser vs estar: the rule, and which one you'll actually hear

Spanish has two verbs for "to be". Ser says what something is: its identity, its characteristics, where it comes from, what time it is, where an event takes place. Estar says where something is and how it is: location, a state or condition, and an action in progress. In film and television dialogue es ("is", with ser) is said 2.9 times as often as está ("is", with estar) — but estoy ("I am") beats soy, and estás ("you are") beats eres. This post sets out the rule properly, then shows which forms you will actually hear.

Updated 7 October 2026 · 8 min read

Why "permanent vs temporary" lets you down

The rule most people are taught first is that ser is for permanent things and estar for temporary ones. It gets a lot of sentences right, and then fails on some of the commonest:

• Está muerto — "he's dead". Nothing is more permanent, and it takes estar, because being dead is a state.
• Es joven — "she's young". Youth passes, and it takes ser, because it describes what she is like.
• La fiesta es en mi casa — "the party is at my house". A location, and it takes ser, because a party is an event rather than a thing.
• Son las tres — "it's three o'clock". As temporary as anything gets, and always ser.

So learn the uses instead. There are more of them, but none has exceptions of that size.

When to use ser

1. Identity: who or what something is. Soy Ana. Esto es un libro. Es médico — "he's a doctor"; with a profession Spanish leaves out the un.
2. Characteristics: what someone or something is like. Es alta y muy simpática. El examen es difícil. Colour, size, shape, personality, nationality and religion all go here.
3. Origin and material. Soy de México. La mesa es de madera — "the table is made of wood".
4. Possession. Es mío. Es de mi hermana — "it's my sister's".
5. Time, dates and days. Son las tres. Es la una. Hoy es lunes. Es tarde — "it's late".
6. Where and when an event takes place. La reunión es en la oficina. El concierto es a las nueve.
7. Prices as a total. Son veinte euros — "that's twenty euros".
8. The passive, with a participle. La casa fue construida en 1900 — "the house was built in 1900". The focus is the action.
9. Impersonal judgements. Es importante. Es verdad. Es posible que llueva.

When to use estar

1. Where a person or thing is. Estoy en casa. Madrid está en el centro de España. ¿Dónde están las llaves? Countries and cities count as things, so they take estar too.
2. States and conditions. Estoy cansado. La sopa está fría. Está enfermo. ¿Cómo estás? — "how are you?" This is how someone or something is at the moment, or how it has ended up, and it includes está muerto.
3. An action in progress, with a gerund. Estoy comiendo — "I'm eating". ¿Qué estás haciendo? English "I am eating" is always estar, never ser.
4. The result of an action, with a participle. La puerta está cerrada — "the door is closed" (someone closed it).
5. Set expressions. Está bien ("it's fine, OK"), estar de vacaciones ("to be on holiday"), estar de acuerdo ("to agree"), estar de camarero ("to be working as a waiter, for now").

Two things sit between the two and are worth knowing. Marital status takes both — es casado and está casado are both heard — but está casado is the commoner, and it is the safe choice. Describing food or a person on a given day takes estar where English would never think of it: la paella está buenísima is "the paella is delicious (this one, today)", and qué guapa estás is "you look lovely", as against qué guapa eres, "you're beautiful".

Adjectives that change meaning

A handful of adjectives mean different things with the two verbs. These are not exceptions to the rule; they follow it exactly — ser gives the characteristic, estar the state — but the English translations are different words, so they have to be learned as pairs.

Soy aburrido ("I'm a boring person") and estoy aburrido ("I'm bored") is the pair that catches out almost everyone once.

Which one you'll actually hear

We counted every form of both verbs in 423 million words of Spanish film and television subtitles and set them side by side, person by person. The figures are how often each form is said per million words:

Three things stand out.

Ser is said more overall, because of one word. Es is number 8 among all the words of Spanish dialogue, and it does most of the describing, identifying and judging in the language: es verdad, es mi hermano, es importante. Added up, the ser forms in the table come to 27,573 per million words and the estar forms to 15,668.

In "I", "you" and "we", estar wins. Estoy is said 1.47 times as often as soy, and estás 1.46 times as often as eres. People talk about where they are, how they are and what they're doing far more than about what they are. ¿Estás bien? Estoy aquí. Estamos en camino. A learner who has only practised soy estudiante has practised the rarer verb.

The other tenses lean hard to ser. Sea, será and sería are each said about three to four times as often as their estar counterparts, because the subjunctive, future and conditional are where speakers judge and speculate — sea lo que sea, "whatever it is" — rather than locate.

(Fue, "was", is left out: it is also "went", the past of ir, and no word count can separate the two. It is said 1,846 times per million words, which would only widen ser's lead.)

What comes after each verb

A word count cannot see the next word, so we used a second source: all 442,260 Spanish sentences in the Tatoeba collection, and looked at the word that comes straight after each form of the two verbs.

• After a form of estar, the next word is a gerund — haciendo, buscando, hablando — 28.7% of the time, and en or a place word such as aquí another 11.0%.
• After a form of ser, a gerund almost never follows, and an article or possessive — un, una, el, mi — follows 35.3% of the time: es un buen hombre, es mi casa. After estar that figure is 3.7%.

That is the rule seen from the outside. Ser is followed by what something is; estar by where it is and what it is doing. If a noun with an article is coming, it will be ser; if an -ando or -iendo is coming, it will be estar. (Tatoeba's sentences are written by volunteers rather than transcribed from speech, so treat these as a picture of written everyday Spanish rather than of conversation.)

A short way to decide

1. Is it an event? Ser for where and when it happens.
2. Is it where something is? Estar.
3. Is it an action happening now (-ando, -iendo)? Estar.
4. Is it what someone or something is — a name, a job, a nationality, a nature, a time? Ser.
5. Is it how someone or something is right now, or how it has ended up? Estar.

Ser and estar are the two most common verbs in Spanish, as the 100 most common Spanish verbs shows, and choosing between them is one of the reasons Spanish is harder than it first looks. The other classic pair is por and para. The Spanish course teaches both verbs from its first lesson, and the first 1,000 Spanish words put every form of them in order.

Sources

• Real Academia Española and Asociación de Academias de la Lengua Española, Nueva gramática de la lengua española (2009), the chapter on copulative sentences with ser and estar.
• Wikipedia: Romance copula, the ser/estar distinction and its history.
• Lison, P. & Tiedemann, J. (2016). OpenSubtitles2016: Extracting Large Parallel Corpora from Movie and TV Subtitles. Proceedings of LREC 2016. aclanthology.org
• Dave, H. FrequencyWords: frequency lists from OpenSubtitles 2018, content licensed CC BY-SA 4.0. github.com.
• Tatoeba: Spanish sentences, licensed CC BY 2.0 FR, downloaded 2026-09-29. tatoeba.org. The counts are computed by ser_estar in scripts/frequency_extras.py and printed from its output rather than typed.