Future Perfect y Continuous
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The future perfect (will have + past participle) describes an action that will be completed before a certain point in the future: 'By 6 pm, I will have finished the report.'
It's the future looking back: at a future moment, the action is already done. It almost always appears with 'by' or 'by the time'.
Ejemplos
By 6 pm, I will have finished the report.
Completed before a future point (6 pm).
By 2030, I will have graduated from university.
will have + past participle.
By the time you arrive, they will have left.
Leaving completes before your arrival.
will have finished
/wɪl həv ˈfɪnɪʃt/
By 6 pm, I will have finished the report.
will have graduated
/wɪl həv ˈɡrædʒueɪtɪd/
By 2030, I will have graduated from university.
will have left
/wɪl həv left/
By the time you arrive, they will have left.
won't have seen
/woʊnt həv siːn/
She won't have seen the email yet.
Choose the future perfect: By 6 pm, I ___ the report.
Complete: By the time you arrive, they will ___ left. (have)
The future continuous (will be + -ing) describes an action that will be in progress at a specific future moment: 'This time tomorrow, I will be working in the office.'
It pictures you in the middle of an activity at that future time, rather than its completion.
Ejemplos
This time tomorrow, I will be working in the office.
In progress at a future moment.
At 9 pm, we will be flying over the Atlantic.
will be + -ing at a set time.
Don't call late — they'll be sleeping.
Ongoing future action.
will be working
/wɪl biː ˈwɜːkɪŋ/
This time tomorrow, I will be working in the office.
will be flying
/wɪl biː ˈflaɪɪŋ/
At 9 pm, we will be flying over the Atlantic.
will be sleeping
/wɪl biː ˈsliːpɪŋ/
Don't call late — they'll be sleeping.
Choose the action in progress: This time tomorrow, I ___ in the office.
Complete: At 9 pm, we will ___ flying over the Atlantic. (be)
The future perfect loves time markers that set a deadline: 'by next month', 'by Friday', 'by the time we arrive'.
Note: after 'by the time', use the present simple, not a future form — 'By the time we arrive, the film will have started' (not 'will arrive').
Ejemplos
By next month, I'll have moved house.
'by + time' sets the deadline.
By the time we arrive, the film will have started.
Present simple after 'by the time'.
I will have completed the project by Friday.
Deadline at the end of the sentence.
by next month
/baɪ nekst mʌnθ/
By next month, I'll have moved house.
by the time
/baɪ ðə taɪm/
By the time we arrive, the film will have started.
by Friday
/baɪ ˈfraɪdeɪ/
I will have completed the project by Friday.
Choose the correct verb after 'by the time': By the time we ___, the film will have started.
Deadline word: I will have completed the project ___ Friday.
The future perfect continuous (will have been + -ing) stresses the duration of an activity up to a future point: 'By July, I'll have been working here for ten years.'
It combines completion-by-a-deadline with a focus on how long — usually with 'for' + a length of time.
Ejemplos
By July, I'll have been working here for ten years.
Duration up to a future point.
She'll have been studying for six hours by then.
will have been + -ing for duration.
By midnight, they'll have been driving for twelve hours.
Emphasis on the length of the activity.
will have been working
/wɪl həv bɪn ˈwɜːkɪŋ/
By July, I'll have been working here for ten years.
will have been studying
/wɪl həv bɪn ˈstʌdiɪŋ/
She'll have been studying for six hours by then.
Choose the form stressing duration to a future point: By July, I'll ___ here for ten years.
Complete: She'll have ___ studying for six hours by then. (been)
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