The grammar is incorrect. "Estás" is a familiar form of the verb "estar", meaning "to be", while "usted" is a formal useage for "you". Oil and water.
"Estás tú" or "Está usted" mean "It is you". The first is informal, the second formal.
It means "is here". Depending on the reference, it can also mean "she is here" or "he is here".
it means are you from here ? (Also used as a statement)
It means: "I am"
this isn't spanish what you talkin bout
Como esta usted ? means How are you?
You are.
with you
It means "you"
Are you a monster no you're not
"Todo para usted" is Spanish and it means "all for you."
You know that you want that
You understand
you are here
he/she/you fail
Same to you