Hello!
The conjugation of the verb ESTAR is as follows:
Yo Estoy
Tu Estás
El Está
Nosotros Estamos
Vosotros Estáis
Ellos Están
Why?
In Spanish, each pronoun has a different conjugation. There are also different conjugations depending on the verb tense. The previous ones were in present tense.
The verb ESTAR is like the verb TO BE in English, but related to a place or to an activity that the person is doing.
An example of a sentence using the verb ESTAR is:
Yo estoy Comiendo (I am eating)
Tu estás en Casa (You are at home)
El está feliz (He is happy)
Have a nice day!