Futuro Perfecto

Future Perfect has two different forms: "will have done" and "be going to have done." Unlike Simple Future forms, Future Perfect forms are usually interchangeable.

El Futuro Perfecto tiene dos diferentes formas: "Will have done" y "be going to have done". A diferencia del Futuro Simple, El Futuro Perfecto es usualmente intercambiable

FORMA del Futuro Perfecto con "will"

[will have + pasado participio]

Ejemplos:

• You will have perfected your English by the time you come back from the U.S.
• Will you have perfected your English by the time you come back from the U.S.?
• You will not have perfected your English by the time you come back from the U.S.

FORMA del Futuro Perfecto con "Be Going to"

[am/is/are + going to have + pasado Participio]

Ejemplos:

• You are going to have perfected your English by the time you come back from the U.S.
• Are you going to have perfected your English by the time you come back from the U.S.?
• You are not going to have perfected your English by the time you come back from the U.S.

NOTA: Es posible usar cualquiera de las dos formaspara crear el Futuro Perfecto con una pequeña diferencia o sin ninguna diferenca en el significado

USO 1 Acciones completas antes de algo en el futuro

The Future Perfect expresses the idea that something will occur before another action in the future. It can also show that something will happen before a specific time in the future.

El Futuro Perfectp expresa la idea de que algo va a ocurrir antes que otra acción en el futuro. También nos demuestra que algo va a pasar antes de un tiempo especifico en el futuro

Ejemplos:

• By next November, I will have received my promotion.
• By the time he gets home, she is going to have cleaned the entire house.
• I am not going to have finished this test by 3 o'clock.
• Will she have learned enough Chinese to communicate before she moves to Beijing?
• Sam is probably going to have completed the proposal by the time he leaves this afternoon.
• By the time I finish this course, I will have taken ten tests.
• How many countries are you going to have visited by the time you turn 50?

Notece en el ejemplo anterior que la referencia que esta marcada en italica, estan en Presente Simple en lugar de Futuro Simple. Esto es porque las interrupciones estan en clausulas de tiempo, y no puedes usar tiempo futuros en clausulas de tiempo

USO 2 Duración antes de algo en el Futuro (Verbos no Continuos

Con los Verbos No continuos y algunos usos no continuos de los Verbos Mixtos, usamos el Futuro Perfecto para demostrar que algo va continuar hasta que que otra acción en el futuro comienze

Ejemplos:

• I will have been in London for six months by the time I leave.
• By Monday, Susan is going to have had my book for a week.

Mientras que en lo anterior usamos el Futuro Perfecto, normalmente esta limitado a los Verbos No Continuos, y usos No Continuos de los Verbos Mixtos, las palabras "live", "work", "teach" y "study" son usados en algunas ocaciones de alguna manera aunque no sea Verbos NO Continuos

RECUERDEN NO hay futuro en las Clausulas de Tiempo

Como todas las formas del futuro, El Futuro Perfecto no puede ser ser usado en clausulas que empiecen con expresiones como: when, while, before, after, by the time, as soon as, if, unless, etc. En Lugar de Futuro Perfecto, usamos el Presente Perfecto

Ejemplos:

• I am going to see a movie when I will have finished my homework.Incorrecto
• I am going to see a movie when I have finished my homework. Correcto

Ejercicio del Futuro Perfecto