QUICK ANSWER
"Done" is a form of "done", an adjective which is often translated as "listo". "It must have been" is a phrase which is often translated as "debe haber sido". Learn more about the difference between "it must have been" and "done" below.
it must have been(
iht
muhst
hahv
bihn
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. debe haber sido
I got to sit in the front row at a Paco de Lucia concert. - It must have been wonderful.Tuve la oportunidad de sentarme en la primera fila en un concierto de Paco de Lucía. - Debe haber sido maravilloso.
b. tiene que haber sido
It must have been difficult for Maria to testify against her mother in court.Tiene que haber sido difícil para María declarar en contra de su madre en la corte.
done(
duhn
)An adjective is a word that describes a noun (e.g., the big dog).
1. (finished)
2. (culinary)
3. (proper)
a. bien visto
Talking to clients about money during the first meeting is something that's not done.No está bien visto hablar sobre dinero con los clientes en la primera reunión.
4. (colloquial) (exhausted)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
a. agotado
I was done. All I wanted was to get home and put my feet up.Estaba agotado. Lo único que quería era llegar a casa y poner los pies en alto.
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
