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Future Perfect

Simple vs Continuous

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What is the difference between the sentences?

In TWO years’ time I’ll write my novel.

In FOUR years’ time I’ll have been writing my novel.

In six years’ time I will have written my novel.

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What is the difference between the sentences?

In TWO years’ time I’ll write my novel.

In FOUR years’ time I’ll have been writing my novel.

In six years’ time I will have written my novel.

Certainty

A goal, finished

Plan: in progress, incomplete

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FUTURE PERFECT SIMPLE

  • Describe un objetivo que cumpliré/ acabará antes de una fecha en el futuro:

WILL HAVE + PARTICIPLE

(+) I will have read a book.

(-) He won’t have finished the exam at 12.

(?) Will you have finished your workout?

By this time next year, I will have graduated

A estas alturas el año que viene, me habré graduado

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FUTURE PERFECT CONTINUOUS

  • Planes futuros / evento progresivo que será completado en algún momento

  • Énfasis: esfuerzo, repetición o duración de acción

WILL HAVE BEEN + -ING

(+) I will have been reading a book for 2 hours.

(-) He won’t have been teaching for three years.

(?) Will you have been drawing when I come to pick you up?

By 2035, I will have been watching birds for years. I will be an expert.

I will have been painting the walls for three hours by 6pm

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Speak up: Can you TRANSLATE these?

A. She will have been working for over 8 hours by the time her children arrive.

B. He will have been studying English for 3 years next month.

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Speak up: Can you TRANSLATE these?

A. She will have been working for over 8 hours by the time her children arrive.

Ella habrá estado trabajando durante más de 8 horas para cuando lleguen sus hijos (equivalente a futuro perfecto continuo)

B. He will have been studying English for 3 years next month.

Él habrá estado estudiando Inglés durante 3 años el mes que viene.

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So,�in short...

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WHEN DO I USE EACH?

will have + partic.

- Goal I’ll reach�by X time.

- Some verbs: achieved, finished, passed, found, reached, won, passed, retired, fulfilled…

will have been -ing

- Goal still in progress at X time

BOTH:

Time adverbs:

❥ When...

❥ By the time…

❥ By the end…

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Last (but not least):

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How to use BY THE TIME/WHEN

Example:

Example:

When/By the time my sister graduates, I will have left Spain.

Es un adverbio de tiempo que se puede utilizar con tiempos verbales varios.

Significa “para X fecha”: By the time + Present simple, Future Perf/continuous

When/By the time she arrives, �I will have been studying� for two hours.

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(That’s the end of the theory for you!)

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Speak up: what will you be like at age 70?

Discuss which picture represents yourself better and why:

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Speak up: what will you be like at age 70?

Think/write two sentences using the future perfect and two sentences using the future perfect continuous. Examples:

“I will have tried parachuting when I am 70

I will have probably written a recipe book.

I will have probably been living in Portugal”