O futuro perfeito expressa a ideia de que algo irá ocorrer antes de outra ação no futuro.
Formada pelo futuro simples do verbo to have seguido pelo passado perfeito do verbo principal.

AFFIRMATIVE/AFIRMATIVO
Sujeito + futuro simples do verbo to be (will have) + passado
particípio + complemento
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NEGATIVE/NEGATIVO
Sujeito + will have not (won't) + passado
particípio + complemento
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INTERROGATIVE/INTERROGATIVO
Will + sujeito + have + passado
particípio + complemento
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Na tabela abaixo foi usado o exemplo do sujeito Eu ''I''.
Infinitive
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Future Perfect
|
Interrogative + v.3
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I
You
He
She
It
We
You
They
|
To ask
To be
To call
To do
To make
To see
To use
To work
| Will have asked Will have been Will have called Will have done Will have made Will have seen Will have used Will have worked | Will not have asked Will not have been Will not have called Will not have done Will not have made Will not have seen Will not have used Will not have worked Forma contraída: Won't have asked Won't have been | Will I have asked...? Will I have been...? Will I have called...? Will I have done...? Will I have made...? Will I have seen...? Will I have used...? Will I have worked...? |