If there is one thing that confuses English speakers learning Spanish more than anything else, it is this: Spanish has two verbs that both mean “to be”ser and estar — and using the wrong one is one of the most common mistakes at every level.

The good news: the rule is learnable. Once it clicks, it becomes instinctive. This guide will get you there.


The Core Idea

Think of it this way:

  • Ser = what something is (identity, permanent or defining characteristics)
  • Estar = how something is right now (state, location, temporary condition)

That’s the mental shortcut. It’s not perfect — Spanish never is — but it covers 80% of cases.


When to Use Ser

Use ser for things that define the subject — things that are inherent, lasting, or categorising.

1. Identity and nationality

Soy inglés. — I am English. Es médico. — He is a doctor.

2. Origin — where someone or something is from

¿De dónde eres? — Where are you from? Soy de Londres. — I am from London.

3. Relationships

Es mi hermana. — She is my sister. Son mis amigos. — They are my friends.

4. Permanent physical description

Es alto y moreno. — He is tall and dark-haired. La casa es grande. — The house is big.

5. Time, dates, and days

Son las tres. — It is three o’clock. Hoy es lunes. — Today is Monday.

6. Material and possession

La mesa es de madera. — The table is made of wood. El coche es de María. — The car is María’s.

7. Passive voice (with a past participle)

La reunión fue cancelada. — The meeting was cancelled.


When to Use Estar

Use estar for things that describe a current state — things that can change.

1. Location (people, objects, and places)

Estoy en el hotel. — I am at the hotel. ¿Dónde está la estación? — Where is the station?

Note: even permanent locations use estarMadrid está en España — because location is always treated as a state in Spanish.

2. Emotions and temporary mental states

Estoy cansado. — I am tired (right now). Está nervioso antes del examen. — He is nervous before the exam.

3. Health and physical condition

¿Cómo estás? — How are you? Estoy enfermo. — I am ill.

4. Ongoing actions (with the gerund)

Estamos comiendo. — We are eating. Está lloviendo. — It is raining.

5. Results of a change or process

La puerta está cerrada. — The door is closed (someone closed it). Está muerto. — He is dead (he died).


The Trickiest Cases

”Estar” with adjectives that change meaning

Some adjectives change meaning depending on whether you use ser or estar:

AdjectiveWith serWith estar
aburridoHe is boring (personality)He is bored (right now)
listoHe is cleverHe is ready
maloHe is bad / evilHe is ill
buenoHe is good (morally)He tastes good / feels good
ricoHe is rich (wealthy)It is delicious
seguroIt is safeHe is certain / sure

This is one of the most tested areas in Spanish exams — and one of the most useful to know in real life.

Location of events vs. location of people

Events use ser, not estar:

La fiesta es en mi casa. — The party is at my house. ✓ La fiesta está en mi casa. — ✗ (wrong for an event)


The Most Common Mistakes

1. Using ser for emotions

Soy cansado.Estoy cansado. — I am tired.

2. Using estar for nationality or profession

Estoy francés.Soy francés. — I am French.

3. Using ser for location

El baño es al final del pasillo.El baño está al final del pasillo. — The bathroom is at the end of the corridor.


A Quick Test

Try these — ser or estar?

  1. She is a teacher. → ___ profesora.
  2. I am very happy today. → ___ muy contento hoy.
  3. The coffee is cold. → El café ___ frío.
  4. They are from Argentina. → ___ de Argentina.
  5. Where is the restaurant? → ¿Dónde ___ el restaurante?

Answers: 1. Es · 2. Estoy · 3. está · 4. Son · 5. está


Keep Practising

The best way to internalise this is through real examples — not just rules. The Ser vs Estar reference guide on MySpanishLeap has 12 specific rules with examples you can use as a quick reference. When you feel ready, head to The Gym and practise using these verbs in full sentences.

The rule will feel unnatural at first. After a few weeks of exposure, you will start to feel which one is right — and that is when it has truly clicked.