Ser vs estar
Two ways to say “to be”. Two ways to describe the world.
The short answer
Use ser to identify or classify someone or something, and estar to describe a state or locate a person or thing. Duration alone does not decide which verb you need: the meaning you want to express matters.
ser
Who or what it is
Identity, origin, professions, and characteristics presented as descriptions.
Lucía es arquitecta.
Lucía is an architect.
estar
How or where it is
States, conditions, and the location of people or things.
Lucía está en la oficina.
Lucía is at the office.
Start with the message you want to give
Imagine introducing a friend, then explaining how she feels today. Her profession answers “What does she do?” Her tiredness describes her current condition. Spanish uses different verbs for those two jobs. Learn the whole sentence pattern rather than replacing every English “is” with one Spanish word.
Soy de Chile.
I’m from Chile.
Ser de introduces your origin.
Hoy estoy cansada.
Today I’m tired.
Estar describes how the speaker feels. A masculine speaker would use cansado.
A place and an event behave differently
Use estar to locate people and things. To say where an event takes place, use ser. This contrast is especially useful when arranging to meet someone: a café has a location, while a meeting happens at a location.
La cafetería está junto al museo.
The café is next to the museum.
You are locating a place.
La reunión es en la cafetería.
The meeting is at the café.
You are saying where an event takes place.
Changing the verb can change the meaning
Some adjectives work with both verbs, but the message changes. Memorise the contrasting phrases together so you can recall the meaning you actually need in a conversation.
Mateo es listo.
Mateo is clever.
A description of Mateo’s intelligence.
Mateo está listo.
Mateo is ready.
He is prepared to do something.
Try it yourself
Choose the word or verb form that fits the situation. Say the complete sentence before checking your answer.
You are giving your profession.
Yo ___ profesora.
Check answer 1
Yo soy profesora.
A profession identifies or classifies the speaker, so use ser. Its yo form is soy.
You are telling someone where the keys are.
Las llaves ___ en mi mochila.
Check answer 2
Las llaves están en mi mochila.
Use estar for the location of things. Las llaves is plural, so the form is están.
You are announcing the venue of a concert.
El concierto ___ en el parque.
Check answer 3
El concierto es en el parque.
The concert is an event. Ser tells the listener where it takes place.
Make it your own
Introduce yourself with ser. Describe how you feel with estar. Say both sentences aloud, then change one detail and recall them without looking.
Grammar references
For further detail, see these Spanish-language dictionary and usage entries. Examples and practice questions above are written for this guide.