Conjugations of ser and estar

The following image shows the conjugations of both verbs:

When do you use ser?

Ser is used for permanent or long-term descriptions. We use it in cases like:

• nationality
  soy Española (I’m Spanish), soy de Suecia (I’m from Sweden)

• profession
  soy cantante (I’m a singer)

• physical traits
  él es pelirrojo (he is a redhead), somos altos (we are tall)

• religion
  mi familia es católica (my family is Catholic)

• shape and size
  es cuadrado (it’s square), es pequeño (it’s small)

• material
  es de lana (it’s made of wool)

• possession
  es tuyo/es de María (it’s yours/it’s Maria’s)

• time and day
  son las 5 de la mañana (it’s 5 in the morning)

As you can see, ser is most used with things we can describe as permanent. The exception to this is time and day because they’re always changing, however, we still use ser.

When do you use estar?

We use estar for temporary circumstances or situations.

• emotions
  está muy contenta hoy (she is very happy today)

• temporary conditions
  nuestro coche está roto (our car is broken)

• location
  estoy en el parque (I’m in the park)

Some examples of ser and estar in use

La camiseta es azul y es de algodón. (The t-shirt is blue and made of cotton.)

Here, we use ser in both cases of the t-shirt’s description because they will not change; the shirt will not suddenly turn orange, nor will it become a different material.

Marina es alta e intelligente. (Marina is tall and intelligent.)
We use ser to describe Marina because she will always be tall and her intelligence will remain the same, it is a permanent description.

Los pantalones son grises y están sucios. (The pants are grey and they are dirty.) We use ser to describe the colour of the pants – which does not change – and estar to describe the condition of the pants – they are dirty now, but when they’re washed, they will be clean.

Tus padres son buenos amfitriones cuando están en casa. (Your parents are good hosts when they’re at home.) We use ser to indicate that your parents are always good hosts and estar to indicate location.

Things to watch out for with ser and estar

In some cases, the choice of either ser or estar will completely change the meaning of a sentence.

Remember, ser is used to communicate permanence, so using ser in a description means it is something immutable (it cannot change), or it is part of that thing or person.

Using estar implies the description of a temporary condition.

There are some common adjectives that change meaning drastically depending on whether ser or estar is used. It may be useful to memorize them. Here are some examples:

• ser aburrido: to be boring. Because we use ser which indicates permanence, it means that the person is always boring; sadly, it is part of their character.

• estar aburrido: to be bored. Estar indicates temporary situations or feelings, so the feeling of boredom will eventually pass.

• ser bueno: to be a good person, or that something is good quality, or useful for something. Again, the use of ser indicates permanence and something that constitutes this quality. For example: Comer verduras es bueno. (Eating vegetables is healthy.)

• estar bueno: to be attractive, healthy, or in the case of food- tasty.

Example: El pollo está muy bueno. (The chicken is really good.) In this case, we use estar because we are specifically describing the chicken we are eating. If you were to say El pollo es bueno, you would be saying that ALL chicken is good or delicious.

Here are some more examples of adjectives that change meaning depending on whether ser or estar are used:

• ser malo: to be a bad person with bad intentions, of bad quality, or unhealthy.
  estar malo: in bad condition, in the case of food- tastes bad.

• ser rico: to have a lot of money
  estar rico: to be tasty

• ser listo – to be smart
  estar listo – to be prepared for something

• ser vivo – to be vivacious
  estar vivo – to be alive

• ser orgulloso – to be arrogant
  estar orgulloso – to be proud of a certain achievement

We hope this has cleared some qualms you may have been experiencing with trying to decide between ser and estar. To check your understanding, how would you translate “I am very mad at you for eating the last piece of cake!” If you’re interested in furthering your Spanish education, check out our Spanish classes in the heart of Barcelona.