Identify someone and describe their origin
Ser connects a person with an identity, occupation, or origin. A job can change, so this is not a promise that the description lasts forever. Start by asking what information the sentence gives. These examples identify a profession and a hometown; they do not describe how someone feels or their present location.
Origin and location answer different questions. You can be from Lima while being elsewhere today. De introduces origin below; en introduces location.
Inés es dentista.
Inés is a dentist.
Soy de Lima.
I am from Lima.
Soy de Lima, pero estoy en Bogotá.
I am from Lima, but I am in Bogotá.
Match the verb to the subject
Choose the meaning, then the present tense form. Usted addresses one person but shares a verb form with él and ella. Ustedes shares a form with ellos and ellas. This table follows tú; regional vos patterns need separate treatment.
The verb agrees in person and number, not gender. An adjective may change for gender and number. Below, está becomes están, and cansada becomes cansadas. Keep the accent marks shown.
| Subject | Ser | Estar |
|---|---|---|
| yo | soy | estoy |
| tú | eres | estás |
| él, ella, usted | es | está |
| nosotros, nosotras | somos | estamos |
| vosotros, vosotras | sois | estáis |
| ellos, ellas, ustedes | son | están |
La alumna está cansada.
The female student is tired.
Las alumnas están cansadas.
The female students are tired.
Describe a state without predicting its duration
Estar presents a state or condition. It does not guarantee that the state will end soon. Equally, a description with ser need not be permanent: the day changes, but Spanish still uses ser to name it. Learn the construction and its meaning instead of sorting everything into permanent and temporary boxes.
Después del viaje, estamos cansados.
After the journey, we are tired.
Hoy es jueves.
Today is Thursday.
Separate a place from an event
Use estar to locate a person, object, or building, even when its location is stable. Use ser to state where a scheduled event takes place. Identify what you are locating before choosing. A workshop is an event; its room and the people attending it have physical locations.
La biblioteca está junto al mercado.
The library is next to the market.
El taller es en la biblioteca.
The workshop takes place in the library.
Los participantes están en la biblioteca.
The participants are in the library.
References for this explanation
Notice when an adjective changes meaning
Some adjectives allow both verbs with different readings. With a person, ser listo describes cleverness; estar listo means ready. Ser aburrido describes someone who causes boredom; estar aburrido describes someone who feels bored. Context selects the message. These are useful contrasts, not a rule that every adjective works with both verbs.
Imagine Nora solving a difficult problem, then collecting her keys before leaving. Distinguish the storyteller’s effect on listeners from his own boredom while waiting. Someone can be clever and ready, or boring and bored, simultaneously.
Nora es lista.
Nora is clever.
Nora está lista para salir.
Nora is ready to leave.
Ese narrador es aburrido.
That storyteller is boring.
El narrador está aburrido.
The storyteller is bored.
Learn the whole expression
English be does not always translate into ser or estar. Spanish expresses hunger and numerical age with tener. Learn the complete expressions.
Small words matter. Ser plus an occupation identifies a profession; estar de plus an occupation can describe temporary work. This does not make estar followed directly by the job noun correct. Learn whole patterns before extending them to unfamiliar adjectives or idioms.
Tengo hambre.
I am hungry.
Tengo veinte años.
I am twenty years old.
Este verano estoy de camarero.
This summer I am working as a waiter.
References for this explanation
Work through a sentence in three steps
Identify the message: identity, origin, state, location, event, or a learned expression. Choose the verb and match it to the subject. Check adjectives, prepositions, and accents. If both verbs seem possible, explain their meanings before choosing.
Worked example: the female students have their materials and are ready to begin. Readiness selects estar with listas. The subject is plural, so choose están. The adjective is feminine plural to match alumnas. Using son would describe cleverness instead of the readiness requested here.
Las alumnas están listas para empezar.
The female students are ready to begin.
Notice the difference
Common mistakes
Naming your occupation
Instead ofEstoy dentista.
For this meaningSoy dentista.
A profession directly following the verb uses ser. A different construction, estar de plus a job, can describe temporary work.
Locating the museum building
Instead ofEl museo es junto al banco.
For this meaningEl museo está junto al banco.
A stable location still uses estar. The building is not an event.
Giving the concert venue on an invitation
Instead ofEl concierto está en el parque.
For this meaningEl concierto es en el parque.
For this event reading, ser states where the concert takes place.
Saying that you are ready to leave
Instead ofSoy listo.
For this meaningEstoy listo.
Soy listo is grammatical, but describes cleverness. It does not express the intended readiness.
From understanding to using
Make your own example.
Try these without answer choices. Say your answer aloud or write it below, then compare your reasoning with the model.
Your turn 1
Introduce an imaginary person. Give their profession and origin, then say where they are now.
Compare with a model
Lucía es médica. Es de Quito. Ahora está en Madrid.
Lucía is a doctor. She is from Quito. Now she is in Madrid.
- Use ser for profession and origin.
- Use estar for the current location.
- Keep the verb in the correct person.
Your turn 2
Describe a workshop venue and the location of its participants. Finish by saying the female participants are ready.
Compare with a model
El taller es en la biblioteca. Las participantes están allí. Están listas.
The workshop takes place in the library. The female participants are there. They are ready.
- Use ser for the event venue.
- Use estar for the people’s location and readiness.
- Check plural verbs and feminine plural listas.
Put it into practice
Make the next choice.
Choose a response and learn why it works. Your score reflects your first answer to each question. You can revisit anything you miss.
Choose an answer, then open the explanation to check your reasoning.
Question 1
Introduce Marta by stating her profession.
Marta ___ veterinaria.
- es
- está
Check the answer
Answer: es
es: Ser identifies her profession.
está: A profession cannot directly follow estar in this construction.
Question 2
Say where you come from, even though you live elsewhere now.
Yo ___ de Quito.
- estoy
- soy
Check the answer
Answer: soy
estoy: Estar does not express origin in this sentence.
soy: Ser de gives your origin.
Question 3
Point out the physical location of the library building.
La biblioteca ___ junto al río.
- está
- es
Check the answer
Answer: está
está: Estar locates the building, regardless of how long it stays there.
es: This locates a building, not where an event takes place.
Question 4
Write on an invitation where tomorrow’s workshop takes place.
El taller de mañana ___ en la sala dos.
- está
- es
Check the answer
Answer: es
está: The subject here is the scheduled event, not its materials.
es: Ser states the venue of the workshop.
Question 5
Ana has her coat and keys. Say she is ready to leave.
Ana ___ lista para salir.
- es
- está
Check the answer
Answer: está
es: Ser lista describes cleverness, not readiness.
está: Estar lista means ready.
Question 6
Describe Ana’s intelligence as a general characteristic.
Ana ___ lista.
- es
- está
Check the answer
Answer: es
es: Ser lista conveys cleverness in this description.
está: Estar lista would say she is ready.
Question 7
Describe your feeling while waiting with nothing to do.
Yo ___ aburrido mientras espero.
- estoy
- soy
Check the answer
Answer: estoy
estoy: Estar aburrido expresses feeling bored.
soy: Ser aburrido describes being boring to other people.
Question 8
Name today’s weekday in this example, even though tomorrow is different.
Hoy ___ martes.
- está
- es
Check the answer
Answer: es
está: A changing fact does not automatically require estar.
es: Ser names the day in this construction.
Question 9
Say that you and your classmates are students.
Nosotros ___ estudiantes.
- estamos
- somos
- son
Check the answer
Answer: somos
estamos: Estar cannot directly introduce estudiantes to identify your group.
somos: Ser identifies the group, and somos matches nosotros.
son: Son does not agree with nosotros.
Question 10
Tell someone where the keys are.
Las llaves ___ en la mochila.
- está
- son
- están
Check the answer
Answer: están
está: Estar fits location, but está is singular.
son: Ser does not locate these physical objects.
están: Estar gives the location; están agrees with the plural keys.
Question 11
Use tú to state your friend’s place of origin.
Tú ___ de Córdoba.
- eres
- estás
- es
Check the answer
Answer: eres
eres: Ser de expresses origin, and eres matches tú.
estás: Estás matches tú but does not express origin here.
es: Es does not agree with tú.
Question 12
Address one visitor as usted and confirm their current location.
Usted ___ en la sala correcta.
- estás
- está
- es
Check the answer
Answer: está
estás: Estás is the tú form, not the usted form.
está: Estar locates the visitor, and usted takes está.
es: Ser does not express the visitor’s physical location here.
Question 13
The girls have everything they need. State their readiness to begin.
Las chicas ___ listas para empezar.
- son
- está
- están
Check the answer
Answer: están
son: Ser listas would describe cleverness rather than the intended readiness.
está: Está is singular, but las chicas is plural.
están: Están expresses readiness and agrees with the plural subject.
Question 14
Say that you feel hungry, using the usual expression with hambre.
Yo ___ hambre.
- tengo
- soy
- estoy
Check the answer
Answer: tengo
tengo: Spanish uses tener hambre to express hunger.
soy: Hambre does not identify you in this ordinary expression.
estoy: Estar cannot replace tener before hambre in this expression.
Keep the conversation going
What to practice next
Use one new example in a sentence of your own. Then revisit the challenge without looking at the explanation.
Sources and editorial notes
By Loquus ·
Source checked with AI assistance
These original explanations synthesize the sources below. They have not been certified by an independent human language specialist. Regional usage and context are described where they affect the answer. Report a correction in the discussion below.
- Instituto Cervantes: Grammar inventory, A1 and A2, section 12.1
- RAE and ASALE: ser, definitions and present indicative conjugation
- RAE and ASALE: estar, definitions and present indicative conjugation
- Instituto Cervantes: En sintonía con el español, module 17 transcript
- Instituto Cervantes: Grammar inventory, B1 and B2, section 12.1
- University of Texas at Austin: Hecho en Texas, Ser y estar
- RAE and ASALE: listo, meanings prepared and clever
- UMass Amherst: Manual de gramática básica y avanzada del español, section 5.1.2
- RAE and ASALE: aburrir, definition 6 and participle
- RAE and ASALE: concordancia, sections 1 and 2
- RAE and ASALE: tener, definitions 12 and 15
Learning research behind the practice
Worked examples, retrieval practice, and later review inform the activities. These studies do not establish the effectiveness of this specific lesson.