Future Perfect Continuous


Future Perfect Continuous tiene dos formas distintas: "will have been doing " y "be going to have been doing." A diferencia de las formas de Simple Future, las formas de Future Perfect Continuous son por lo general intercambiables.


FORMA DE Future Perfect Continuous con "Will"

[will have been + present participle]


Ejemplos:

  • You will have been waiting for more than two hours when her plane finally arrives.

  • Will you have been waiting for more than two hours when her plane finally arrives?

  • You will not have been waiting for more than two hours when her plane finally arrives.


FORMA DE Future Perfect Continuous con "Be Going To"

[am/is/are + going to have been + present participle]


Ejemplos:

  • You are going to have been waiting for more than two hours when her plane finally arrives.

  • Are you going to have been waiting for more than two hours when her plane finally arrives?

  • You are not going to have been waiting for more than two hours when her plane finally arrives.


NOTA: Es posible usar "will" o "be going to" para formar Future Perfect Continuous con poca o nula diferencia en el significado.


Lista completa de Formas de Future Perfect Continuous



USO 1 Duración Antes de Algo en el Futuro



Utilizamos Future Perfect Continuous para mostrar que algo va a continuar hasta un evento o momento determinado en el futuro. "For five minutes," "for two weeks," y "since Friday" son duraciones que pueden ser utilizadas con Future Perfect Continuous. Ten en cuenta que esto está relacionado con Present Perfect Continuous y Past Perfect Contiuous; sin embargo, con Future Perfect Continuous, la duración se detiene en o antes de un punto de referencia en el futuro.


Ejemplos:

  • They will have been talking for over an hour by the time Thomas arrives.

  • She is going to have been working at that company for three years when it finally closes.

  • James will have been teaching at the university for more than a year by the time he leaves for Asia.

  • How long will you have been studying when you graduate?

  • We are going to have been driving for over three days straight when we get to Anchorage.

  • A: When you finish your English course, will you have been living in New Zealand for over a year?

  • B: No, I will not have been living here that long.


Observa que en los ejemplos anteriores los puntos de referencia (en cursiva) se encuentran en Simple Present y no en Simple Future. Esto es porque estos eventos futuros están en Time Clauses (Simple Future sección adverbio) y no se puede utilizar tiempos verbales futuros en time clauses.


USO 2 Causa de Algo en el Futuro



Usar Future Perfect Continuous antes de otra acción en el futuro es una buena manera de mostrar causa y efecto.


Ejemplos:

  • Jason will be tired when he gets home because he will have been jogging for over an hour.

  • Claudia's English will be perfect when she returns to Germany because she is going to have been studying English in the United States for over two years.


Future Continuous vs. Future Perfect Continuous

Si no incluyes una duración tal como "for five minutes," "for two weeks" or "since Friday," muchas personas de habla inglesa optan por utilizar Future Continuous en vez de Future Perfect Continuous. Ten cuidado porque esto puede cambiar el significado de la oración. Future Continuous enfatiza acciones interrumpidas, mientras Future Perfect Continuous enfatiza una duración de tiempo antes de algo en el futuro. Estudia los ejemplos a continuación para entender la diferencia.


Ejemplos:

  • He will be tired because he will be exercising so hard.

  • Esta oración enfatiza que él va a estar cansado porque se estará ejercitando en ese momento exacto en el futuro.

  • He will be tired because he will have been exercising so hard.

  • Esta oración enfatiza que él va a estar cansado porque habrá estado haciendo ejercicio durante un período de tiempo. Es posible que todavía se esté ejercitando en ese momento O que acabe de terminar.


RECUERDA: No hay Futuro en Time Clauses

Como todas las formas del futuro, Future Perfect Continuous no se puede utilizar en clauses comenzando con expresiones de tiempo, tales como: when, while, before, after, by the time, as soon as, if, unless, etc. En lugar de eso, Future Perfect Continuous, Present Perfect Continuous es usado.


Ejemplos:

  • You won't get a promotion until you will have been working here as long as Tim. Incorrecto

  • You won't get a promotion until you have been working here as long as Tim. Correcto


Y RECUERDA: Non-Continuous Verbs / Mixed Verbs

Es importante recordar que los Non-Continuous Verbs (Tipos de verbos) no se pueden utilizar en ningún tiempo continuo. También, ciertos significados no continuos de algunos  Mixed Verbs (Tipos de verbos) no se pueden utilizar en tiempos continuos. En lugar de utilizar Future Perfect Continuous con estos verbos, debes utilizar Future Perfect.


Ejemplos:

  • Ned will have been having his driver's license for over two years. Incorrecto

  • Ned will have had his driver's license for over two years. Correcto


UBICACION DE ADVERBIOS

Los ejemplos siguientes muestran la colocación de los adverbios gramaticales tales como: always, only, never, ever, still, just, etc.


Ejemplos:


  • You will only have been waiting for a few minutes when her plane arrives.

  • Will you only have been waiting for a few minutes when her plane arrives?

  • You are only going to have been waiting for a few minutes when her plane arrives.

  • Are you only going to have been waiting for a few minutes when her plane arrives?


ACTIVO / PASIVO

Ejemplos:


  • The famous artist will have been painting the mural for over six months by the time it is finished. Activo

  • The mural will have been being painted by the famous artist for over six months by the time it is finished. Pasivo

  • The famous artist is going to have been painting the mural for over six months by the time it is finished. Activo

  • The mural is going to have been being painted by the famous artist for over six months by the time it is finished. Pasivo


OJO: Las formas pasivas de Future Perfect Continuous no son comunes.


Más sobre: Formas Verbales Activas y Pasivas