We are tall = Somos grandes
The house is made of stone = La casa es de piedra
These men are English = Estos hombres son ingleses
The door is red = La puerta es roja
4) Jobs and professions
When jobs and professions are described.
Ejemplos:
My mum is a teacher = Mi madre es profesora
My dad is a doctor = Mi padre es médico
NOTE: No article is needed (un/una) before the profession is stated.
5) Possession
When you are referring to a possession (whether it be yours or somebody else’s)
Ejemplos:
It is my car = Es mi coche
It is not your book = No es tu libro
6) Time
Relating to the time of day, the date and the season.
Ejemplos:
What time is it? = ¿Qué hora es?
It is three o’clock = Son las tres
What date is it? = ¿Qué fecha es?
It’s the third of April = Es el tres de abril
It is winter = Es invierno
7) Age
SER is used in connection with "Joven" (Young) and "Viejo" (Old)
Ejemplos:
The girl is very young = La chica es muy joven
The man is old = El hombre es viejo
8) Passive
SER is used with the past participle (ado/ido) to create a passive (when the subject does not do the action).
Ejemplos:
The pencil was broken by the boy = El lápiz fue roto por el chico
The plates are washed by the woman = Los platos son lavados por la mujer
NOTE: The past participle (ado/ido) always agrees with the subject in a passive.
i.e. La lapiz fue rota - but - los platos son lavados
ESTAR should be used for:
1) Location
To refer to a place (expressing where someone/something is)
Ejemplo:
The shop is near the park = La tienda está cerca del parque
2) Temporary situations
To refer to a temporary situation (e.g. an emotion - something which is not permanent
Ejemplo:
Today we are happy = Hoy estamos contentos
3) To form continuous tenses
To form the present continuous tense (to
describe when you are in the process of an action), you must use ESTAR
+ present participle (iendo/ando)
Ejemplos:
I am eating = Estoy comiendo
He is speaking = Está hablando
4) Specific phrases
Ejemplos:
To be in favour of = Estar por
To be about to do something = Estar para hacer algo
5) With a past participle (ado/ido) to express the result of a past action:
To refer to a place (expressing where someone/something is)
Ejemplo:
The window is open = La ventana está abierta
NOTE: The past participle must agree with the subject (i.e. la ventana está abierta