"Why has no one set the table yet?"

Translation: Pourquoi personne n'a encore mis la table ?

[LoisDelaney]

Why not "n'a déjà mis la table"

[PKE26318]

déjà means "already", as in "I already set the table an hour ago".

[Arturinho2]

why is sometimes mis la table ? and sometimes met la table ? HELP !

[geoffreymayer]

"Mis" is the past participle. "Avoir mis" is passé composé, a past tense. "Set the table" is in the past tense in this sentence. "Met" is third person, singular, present tense.