Future perfect

Formação

O termpo verbal "future perfect" é composto por dois elementos:
o "simple future" do verbo "to have" (will have) + o "past participle" do verbo principal

Sujeito + will have + "past participle" do verbo principal
He will have finished.
I will have finished.
To arrive no "future perfect"
Afirmativa Negativa Interrogativa Negativa Interrogativa
I will have arrived I won't have arrived Will I have arrived? Won't I have arrived?
You will have arrived You won't have arrived Will you have arrived? Won't you have arrived?
He will have arrived He won't have arrived Will he have arrived? Won't he have arrived?
We will have arrived We won't have arrived Will we have arrived? Won't we have arrived?
They will have arrived They won't have arrived Will they have arrived? Won't they have arrived?

Funções

O "future perfect" indica uma ação que será concluída no futuro. Quando utilizamos esse tempo, estamos nos projetando ao futuro e observando uma ação que será finalizada em algum momento posterior ao presente. Em geral, ele é mais utilizado junto a expressões temporais.

Exemplos
  • I will have been here for six months on June 23rd.
  • By the time you read this I will have left.
  • You will have finished your report by this time next week.
  • Won't they have arrived by 5:00?
  • Will you have eaten when I pick you up?