THE FUTURE PERFECT

will have + particípio passado

Afirmativa: He will have left.
Interrogativa: Will he have left?
Negativa: He will not have left.
Forma abreviada: won't (will not)
Obsevação: as formas são as mesmas para todas as pessoas.

• USO

O future perfect indica que uma ação terá ocorrido (ou não) antes de um determinado momento no futuro.
By 5:00, I will have arrive home.
By January, she will have bought her house.
They won't have fixed the TV by 7:00.