¿Dónde estás? Estoy en casa.Where are you? I'm at home.

estar is Spanish's other verb for "to be" — this lesson is about its own forms and its own typical jobs. (The verb ser covers different ground; comparing the two is its own lesson once you know both: Ser vs estar: basic contrast.)

Quick shortcut: estoy (I am), estás (you are, informal — same form with vos), está (he/she/it is, you are formally), estamos (we are), estáis (you all are, Spain), están (they/you all are).

Conjugation

Subject Form Example
yo estoy Yo estoy cansado. (I am tired.)
tú / vos estás estás ocupada. (You are busy.)
usted / él / ella está Ella está en casa. (She is at home.)
nosotros/as estamos Nosotros estamos listos. (We are ready.)
vosotros/as estáis Vosotros estáis muy callados. (You all are very quiet.)
ustedes / ellos / ellas están Ellos están en el parque. (They are in the park.)

estar is only slightly irregular — the yo form (estoy) doesn't follow the pattern, and estás, está, estáis, and están all carry a written accent on the last syllable (estoy and estamos don't). Unlike ser, where vos has its own distinct form (sos), estar's vos form is identical to 's: both say estás.

Location: where something is

estar says where a person or thing is, whether that's permanent or temporary:

  • Estoy en la oficina. (I am at the office.)
  • Madrid está en España. (Madrid is in Spain.)
  • ¿Dónde están las llaves? (Where are the keys?)

There's one common exception: when the subject is an event rather than a person or thing, the location instead takes serLa reunión es en la oficina (The meeting is at the office), El concierto es en Madrid (The concert is in Madrid).

States and conditions

estar + an adjective describes a condition felt as changeable or circumstantial, not a defining trait — how someone feels, a mood, a physical condition. Most of these are temporary, but not all of them have to be brief to still count as a state rather than a trait (estar casado, "to be married," can last a lifetime and still takes estar):

  • Estoy cansado. (I am tired.)
  • Ella está enojada. (She is angry.)
  • La sopa está fría. (The soup is cold.)

This is exactly the point where Spanish's other "to be," ser, would instead describe a defining, lasting characteristic (Ella es alta, "She is tall," as a trait, not a state). Telling the two apart in detail is its own lesson: Ser vs estar: basic contrast.

A preview: estar + -ndo

estar also combines with a verb form ending in -ando/-iendo to describe an action in progress right now — Estoy comiendo ("I am eating"). Building and using this properly is its own lesson: present continuous (estar + gerundio).

Common fixed expressions

A few phrases built on estar are worth learning as set pieces:

  • estar de acuerdo (to agree) — Estoy de acuerdo contigo. (I agree with you.)
  • estar listo/a (to be ready) — ¿Estás lista? (Are you ready?)
  • estar bien/mal (to be well/unwell, or okay/not okay) — Estoy bien, gracias. (I'm fine, thanks.)

Common mistakes

  • Madrid es en España. → ✅ Madrid está en España. (the location of a person or thing takes estar — only an event's location takes ser)
  • Ella es cansada. → ✅ Ella está cansada. (a state or condition — how someone feels — takes estar, not ser)
  • Yo soy de acuerdo. → ✅ Yo estoy de acuerdo. (this fixed expression always uses estar)
  • ❌ Mixing up está and están: Los libros está en la mesa. → ✅ Los libros están en la mesa. (match the verb form to the subject's number)

Quick check

Which form fits?

  1. ¿Dónde ____ el baño? (está / están)
  2. Nosotros ____ muy ocupados hoy. (estoy / estamos)
  3. Los niños ____ en el jardín. (está / están)
  4. ¿____ listo para salir? (Estás / Está)
  5. La puerta ____ abierta. (es / está)
Show answers
  1. está   2. estamos   3. están   4. Estás   5. está

Key takeaways

  • estar conjugates: estoy, estás, está, estamos, estáis, están — only estoy is irregular.
  • Unlike ser, estar's vos form is the same as 's: estás.
  • Use it for location (where something or someone is, except for events, which take ser) and states or conditions (how someone or something is, whether brief or lasting).
  • Fixed expressions like estar de acuerdo, estar listo, and estar bien/mal always use estar, never ser.
  • Telling ser and estar apart for describing people and things is its own lesson.