That is the correct spelling of estar, the Spanish verb "to be" (to be at the present time, as in something changeable).
Yo voy a estar allí
The verb "be" is either "ser" or "estar" depending on the context.
estar is singular -_-
It would fall in the category of estar, as estar is a temporary verb and ser is permanent.
I think the word "that" can be conjugated like the verb "ser" and "estar" in spanish, but i think the root word is "ce." hope it helps.
Contigo Quiero Estar was created on 1989-05-27.
Estar a salvo means "be safe" in English.
Estar sin ti was created in 1997.
Estar Banks was born in Boston, in Massachusetts, USA.
Es fantástico estar contigo. Me encanta estar contigo.
it is not possible because estar is temporary so there is no way that you can
It means "to be/stay in the house"