Ser vs Estar: The Difference Explained (DOCTOR, PLACE + Quiz)

Ser vs estar is the first big choice every Spanish learner runs into: both verbs translate as "to be," but they answer different questions. Ser says what someone or something is: identity, profession, characteristics, origin, time. Estar says how and where someone or something is right now: a condition, a location, an action in progress. Compare Ana es profesora. (Ana is a teacher.) with Ana está cansada. (Ana is tired.) The first sentence tells you who Ana is; the second tells you how she feels today, and tomorrow it may no longer be true.

Many classes sum up the difference as "ser is permanent, estar is temporary." It's a useful shortcut, but it has exceptions that show up on every test: nothing is more permanent than death, yet Spanish says Está muerto. (He's dead.), and youth doesn't last, yet you say Es joven. (He's young.) So instead of a rule of thumb, this page explains when to use ser and estar with precise rules: a ser vs estar chart, the DOCTOR and PLACE acronyms, the traps with location and with adjectives that change meaning, a quiz, the conjugation of both verbs and the most common mistakes.

On this page:

• Ser vs estar chart: the difference in one table;
• when to use ser: the DOCTOR rule;
• when to use estar: the PLACE rule;
• ser vs estar quiz: ser or estar?
• adjectives that change meaning with ser and estar;
• location: estar, ser or hay;
• ser and estar conjugation: present, preterite and imperfect;
• common mistakes.

Ser vs estar chart: the difference in one table

The fastest test is to ask a question about the sentence. If it answers ¿Qué es? (What is it?), use ser. If it answers ¿Cómo está? (How is it?) or ¿Dónde está? (Where is it?), use estar. The chart below puts the same topic next to both verbs, so you can see exactly where the line falls.

"Permanent vs temporary" works for about 8 cases out of 10; where it fails, see muerto and vivo, adjectives that change meaning and the location of events.

When to use ser: the DOCTOR rule

Most high school and college Spanish courses in the US teach the uses of ser with the acronym DOCTOR: Description, Occupation, Characteristics, Time, Origin and Relationship. What the six have in common: they describe what someone or something is, its identity and defining features, not a passing state. Being a doctor is part of who a person is, and that's ser territory.

• D - Description (descripción): physical appearance and personality. Mi madre es alta y muy paciente. (My mother is tall and very patient.) These are traits that define a person, not how she looks or feels today.
• O - Occupation (profesión): jobs and professions. Mi hermano es enfermero. (My brother is a nurse.) Notice that Spanish leaves out un/una before a profession on its own: "a nurse" is just enfermero.
• C - Characteristics (características): properties of things and what they're made of (ser de + material). Este coche es eléctrico. (This car is electric.) La camisa es de algodón. (The shirt is made of cotton.)
• T - Time (hora, día y fecha): telling time, days and dates. Son las tres y media. (It's three thirty.) Hoy es 14 de octubre. (Today is October 14.) Use the plural son for every hour except one o'clock: Es la una. (It's one o'clock.)
• O - Origin (origen): where someone or something is from, with ser de. Somos de México. (We're from Mexico.) Where you are now is a different question, and it takes estar: Estamos en Lima. (We're in Lima.)
• R - Relationship (relaciones): family, friends and people at work. Carlos es mi primo. (Carlos is my cousin.) Ella es mi jefa. (She's my boss.)

Other uses of ser

DOCTOR doesn't cover everything. Four more uses of ser come up all the time:

• Events, to say where and when something takes place: La reunión es en la sala 3. (The meeting is in room 3.) El concierto es a las nueve. (The concert is at nine.) This is the big exception to "location takes estar"; see estar, ser or hay.
• Prices, as a total: ¿Cuánto es? - Son veinte euros. (How much is it? - It's twenty euros.) You'll hear this at the register when the cashier rings you up.
• Impersonal expressions (es + adjective + infinitive): Es importante dormir bien. (It's important to get a good night's sleep.) Es mejor esperar. (It's better to wait.)
• The passive voice (ser + past participle): El puente fue construido en 1890. (The bridge was built in 1890.) Here ser is in the preterite, and the participle agrees with the subject: el puente → construido.

When to use estar: the PLACE rule

For estar, US teachers use the acronym PLACE: Position, Location, Action, Condition and Emotion. All five describe how or where someone or something is at a given moment. Many classes add a rhyme: "For how you feel and where you are, always use the verb estar." It's a handy reminder, as long as you remember that the location of events is an exception.

• P - Position (posición): physical posture. Estoy sentado. (I'm sitting.) Los niños están de pie. (The children are standing.) English uses the -ing form here, but Spanish describes the resulting position: sentado literally means "seated."
• L - Location (ubicación): where a person or thing is. El museo está en el centro. (The museum is downtown.) ¿Dónde están mis llaves? (Where are my keys?)
• A - Action (acción en curso): an action in progress, with estar + gerund (gerundio). Estamos cenando. (We're having dinner.) This is the Spanish present progressive, the closest equivalent of English "be + -ing."
• C - Condition (estado físico o temporal): physical and temporary states. La sopa está fría. (The soup is cold.) Mi hijo está enfermo. (My son is sick.)
• E - Emotion (emociones): feelings and moods. Estoy contenta. (I'm happy, said by a woman.) Están nerviosos antes del examen. (They're nervous before the exam.)

Other uses of estar

• The result of a change (estar + past participle, see participio): La tienda está cerrada. (The store is closed.) La ventana está abierta. (The window is open.) Someone closed the store and opened the window; estar describes the state that resulted. The passive with ser, by contrast, describes the action itself.
• Muerto and vivo always take estar, even though death is permanent: Spanish treats it as the result of a change. La planta está muerta. (The plant is dead.) El pez está vivo. (The fish is alive.)
• Bien and mal only go with estar: Estoy bien. (I'm fine.) Esto está mal. (This is wrong.)
• Set expressions: estar de acuerdo (to agree), estar de vacaciones (to be on vacation), estar de buen humor (to be in a good mood), estar a punto de (to be about to). Estoy de acuerdo contigo. (I agree with you.) Están de vacaciones en Italia. (They're on vacation in Italy.)

Estar de + a profession means a temporary job: Está de camarero este verano. (He's working as a waiter this summer.) But Es camarero. (He's a waiter.) is his profession.

Ser vs estar quiz: ser or estar?

Time to put the rules to work. The quiz gives you 10 everyday sentences with a blank: choose the right form of ser or estar, and after each answer you'll see the rule behind it. Every new round picks sentences you haven't seen yet, so you can keep practicing until the choice feels automatic.

Adjectives that change meaning with ser and estar

Most adjectives keep their meaning with either verb: ser gives the general trait, estar the current state. A small group, though, changes meaning completely, and English needs two different words to translate each one. These adjectives are a favorite on quizzes and tests, so learn them in pairs.

Adjectives that change meaning

Same meaning, different nuance

With many other adjectives the meaning stays the same and only the point of view changes: ser describes what someone is like in general, estar how they look or feel now, often compared with how they usually are.

• Es guapa. (She's beautiful, always.) / Está guapa. (She looks beautiful today, in that dress.)
• Es delgado. (He's slim; that's his build.) / Está delgado. (He looks thin; he's lost weight.)
• Es nervioso. (He's a nervous person by nature.) / Está nervioso. (He's nervous right now.)
• Es casado. / Está casado. (He's married.) For marital status both are correct. In Spain está casado is more common; in Latin America you'll hear both.

Location: estar, ser or hay

Location is where the permanent/temporary rule fails most often. A museum isn't going anywhere, yet you say El museo está en el centro. (The museum is downtown.), while a party lasts a few hours, yet you say La fiesta es en mi casa. (The party is at my house.) What matters isn't how long something lasts, but what you're locating: a specific person or thing, the existence of something, or an event. Spanish uses a different verb for each:

Compare the pairs:

• ¿Dónde está el hotel? (Where is the hotel?) / ¿Dónde es la boda? (Where is the wedding?)
• Hay una farmacia cerca. (There's a pharmacy nearby.) / La farmacia está cerca. (The pharmacy is nearby.)

A quick test: if you can replace the verb with tener lugar or celebrarse (to take place, to be held), use ser. English makes the same split: "there is a bank" (hay) vs "the bank is" (está). Just don't confuse hay, a form of haber, with ahí (there).

Ser and estar conjugation

Both verbs are irregular and among the most common verbs in Spanish, so it pays to know their forms by heart. Below are the present tense and the two simple past tenses, the preterite (indefinido) and the imperfect (imperfecto). The charts for every tense and mood are on the ser conjugation and estar conjugation pages.

Present tense (presente)

Past tenses: preterite and imperfect

Watch the accents. Estás, está, estáis and están carry a written accent; without it, esta means "this" (feminine). Fui and fue have no accent, and neither does estuve; éramos has one, erais doesn't. The preterite of ser is identical to the preterite of ir (to go), so context tells you which verb you're looking at: Fui al cine. (I went to the movies.) / Fui profesor. (I was a teacher.) The other forms worth knowing: the past participles are sido and estado, the gerunds siendo and estando, and the present subjunctive forms are sea and esté.

Common mistakes with ser and estar

These seven mistakes account for most of the ser and estar errors English speakers make. An asterisk (*) marks the incorrect version.

1. *Soy cansado. → Estoy cansado. (I'm tired.) Being tired is a condition, the C in PLACE, so it takes estar.
2. *La fiesta está en mi casa. → La fiesta es en mi casa. (The party is at my house.) A party is an event, and the location of an event takes ser.
3. *El museo es en el centro. → El museo está en el centro. (The museum is downtown.) A museum is a building, not an event: where a thing is takes estar.
4. *La planta es muerta. → La planta está muerta. (The plant is dead.) Muerto always takes estar, even though death is permanent.
5. *Estoy profesora. → Soy profesora. (I'm a teacher.) A profession takes ser. Estoy de profesora is only for a temporary job, "I'm working as a teacher for now."
6. *Es bien. → Está bien. (It's fine.) "It's good" sounds like a description, but bien and mal are adverbs, and they only go with estar.
7. *Hoy está lunes. → Hoy es lunes. (Today is Monday.) Days and dates take ser, the T in DOCTOR. You can also say Estamos a lunes. (literally, "we're at Monday").

How to remember ser vs estar: for every sentence, ask whether it says what something is (ser) or how and where it is right now (estar). Use DOCTOR and PLACE to double-check, and learn the traps separately, because no rule of thumb catches them: events take ser, muerto takes estar, bien and mal only take estar, and adjectives like listo, rico or aburrido change meaning with the verb. Practice them as contrasting pairs and say them out loud: es listo / está listo, la fiesta es / la casa está, hay un banco / el banco está. Once the pairs sound natural, the choice stops being a calculation and becomes a reflex.

Related: ser conjugation, estar conjugation, Preterite vs Imperfect (with a quiz), Spanish subjunctive, 100 most common Spanish verbs and the full Spanish grammar index.