The rule, in plain English
Ser and estar both translate as to be, but the choice depends on meaning, not simply permanence. Use ser for identity, classification, origin, profession, relationships, time and date, defining descriptions, and the location of an event. Use estar for the physical location of people, places, and things; feelings and conditions; resultant states; and estar + gerund for an action in progress. Some adjectives change meaning with the verb: es listo means clever, while está listo means ready.
Why it's hard for English speakers
English uses one verb where Spanish makes a meaning-based choice. Permanent versus temporary fails because a permanent location still uses estar and a one-night event still uses ser. Learn each use and notice adjectives whose meaning changes with the verb.
Present tense of ser and estar
| Subject | ser | estar |
|---|---|---|
| Yo | soy | estoy |
| Tú | eres | estás |
| Él/Ella | es | está |
| Usted | es | está |
| Nosotros/as | somos | estamos |
| Vosotros/as | sois | estáis |
| Ellos/Ellas | son | están |
| Ustedes | son | están |
Choose by meaning, not permanence
| Meaning | Use | Example |
|---|---|---|
| Identity / classification | ser | Es mi hermana. |
| Origin | ser | Somos de Perú. |
| Profession | ser | Soy médica. |
| Time / date | ser | Hoy es martes. |
| Defining description | ser | La casa es grande. |
| Event location | ser | La reunión es en el hotel. |
| Physical location | estar | El hotel está en el centro. |
| Feeling / condition | estar | Estoy nervioso. |
| Resultant state | estar | La puerta está cerrada. |
| Action in progress | estar | Están cenando. |
Adjectives whose meaning changes
| Adjective | ser + adjective | estar + adjective |
|---|---|---|
| aburrido/a | to be boring | to be bored |
| listo/a | to be clever | to be ready |
| rico/a | to be rich | to taste delicious |
| malo/a | to be bad | to be ill / spoiled |
| verde | to be green in colour | to be unripe |
| seguro/a | to be safe | to be sure |
Example sentence bank
Shuffling examples…
Common mistakes
- Soy cansadoEstoy cansadoTiredness is a physical state, so use estar.
- Está profesoraEs profesoraA profession uses ser and normally has no article.
- Madrid es en EspañaMadrid está en EspañaThe physical location of a place uses estar.
- La reunión está en la sala dosLa reunión es en la sala dosThe location of an event uses ser.
Practice
Yo ___ de Inglaterra.
El café ___ caliente.
I am tired = ___ cansado.
Ella ___ médica.
Nosotros ___ en el parque.
La reunión ___ en la sala dos.
Madrid ___ en España.
Hoy ___ lunes.