Ser Vs. Estar

Sarah Broder & Olivia Zelling

The Verb Ser

Ser is an irregular verb that means "to be". This means it doesn't follow the regular conjugation rules.

You only use ser in a sentence if the subject and what it's doing follows the DOCTOR acronym.

D - Date

O - Occupation

C - Characteristic

T - Time

O - Origin

R - Relation

The conjugations for ser are:

Yo = soy

Tú = eres

El/ella/usted = son

Nosotros = somos

Ellos/ellas/ustedes = son

Example Sentences Using Ser

D ate - Hoy es el nueve de marzo.

O ccupation - Somos estudiantes.

C haracteristic - Charlie es simpatico.

T ime - Son las ocho y media.

O rigin - Soy de Texas.

R elation - Ella es mi amiga.

The Verb Estar

The verb Estar is also an irregular verb that means "to be". Again, this means, that the conjugation rules are different for this type of verb.

You can only use estar in a sentence if it follows the PLACE acronym.

P - Position

L - Location

A - Action

C - Condition

E - Emotion

Example Sentences Using Estar:

P osition - La computadora está encima de la mesa.

L ocation - Colleyville está in Texas.

A ction- Estoy comiendo la pizza.

C ondition - Estamos enfermos.

E motion - Ella está muy contenta.

For how you feel and where you are, always use the verb ESTAR!

Whenever describing what you or someone is not, put NO before the correct conjugated form of the verb.

Don't Forget

To make an adjective plural:

  1. If it ends in a vowel add “s”

  2. If it ends in a consonant add “es”

If the subject is singular, leave it the way it is. Make sure the gender of the subject matches up with the gender of the adjective.

Ex: joven becomes jovenes

girl: bonita

boy: bonito

Common Misconception

Common misconceptions can happen if the acronym isn't used, therefore the wrong verb would be used, so make sure you use the right verb that fits the right acronym.

Clarifying Questions

What is the acronym for estar?

What are the situations it can be used in?

What is the acronym for ser?

What are the situations it can be used in?



Position, location action, condition, emotion


Date, occupation, characteristic, time, origin, relation