The document discusses the future perfect tense, which is used to describe actions that will be completed before a certain time in the future. It can be formed using "will have" or "be going to have" plus the past participle. The future perfect tense is used to refer to 1) a completed action before something in the future or 2) the duration of a non-continuous verb before something in the future. It also notes that the future perfect cannot be used in time clauses and discusses adverb placement and active/passive voice forms of the future perfect.

1. Future Perfect Tense
The Third of The Perfect Tenses

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Future Perfect
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.
FORM Future Perfect with "Will"
[will have + past participle]
Examples:
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.

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FORM Future Perfect with "Be Going To"
[am/is/are + going to have + past participle]
Examples:
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.
It is possible to use either "will" or "be going to" to
create the Future Perfect with little or no difference in meaning.
NOTE

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Using "Will"
Future
Perfect
Forms Using "Be Going To"

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Using "Will"
Positive Negative Question
•I will have
stopped.
•You will have
stopped.
•We will have
stopped.
•They will have
stopped.
•He will have
stopped.
•She will have
stopped.
•It will have
stopped.
•I will not have
stopped.
•You will not have
stopped.
•We will not have
stopped.
•They will not have
stopped.
•He will not have
stopped.
•She will not have
stopped.
•It will not have
stopped.
•Will I have
stopped?
•Will you have
stopped?
•Will we have
stopped?
•Will they have
stopped?
•Will he have
stopped?
•Will she have
stopped?
•Will it have
stopped?

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Using "Be Going To"
Positive Negative Question
•I am going to have
stopped.
•You are going to have
stopped.
•We are going to have
stopped.
•They are going to have
stopped.
•He is going to have
stopped.
•She is going to have
stopped.
•It is going to have
stopped.
•I am not going to have
stopped.
•You are not going to
have stopped.
•We are not going to
have stopped.
•They are not going to
have stopped.
•He is not going to
have stopped.
•She is not going to
have stopped.
•It is not going to have
stopped.
•Am I going to have
stopped?
•Are you going to have
stopped?
•Are we going to have
stopped?
•Are they going to have
stopped?
•Is he going to have
stopped?
•Is she going to have
stopped?
•Is it going to have
stopped?

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The Uses
USE 1 Completed Action Before Something in the Future
USE 2 Duration Before Something in the Future (Non-Continuous Verbs)
.
REMEMBER No Future in Time Clauses
ADVERB PLACEMENT
ACTIVE / PASSIVE.

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USE 1 Completed Action Before Something in the
Future
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.
Past Present Future
X

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Examples:
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?
Notice in the examples above that the reference points (marked in
italics) are in Simple Present rather than Simple Future. This is
because the interruptions are in time clauses, and you cannot use
future tenses in time clauses.

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USE 2 Duration Before Something in the Future (Non-
Continuous Verbs)
With Non-Continuous Verbs and some non-continuous uses of
Mixed Verbs, we use the Future Perfect to show that something
will continue up until another action in the future.
Past Present Future
X

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Examples:
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.
Although the above use of Future Perfect is normally limited to
Non-Continuous Verbs and non-continuous uses of Mixed
Verbs, the words "live," "work," "teach," and "study" are
sometimes used in this way even though they are NOT Non-
Continuous Verbs.

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REMEMBER No Future in Time Clauses
Like all future forms, the Future Perfect cannot be used in clauses
beginning with time expressions such as: when, while, before, after, by
the time, as soon as, if, unless, etc. Instead of Future Perfect, Present
Perfect is used.
Examples:
I am going to see a movie when I will have finished my
homework. Not Correct
I am going to see a movie when I have finished my
homework. Correct

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ADVERB PLACEMENT
The examples below show the placement for grammar adverbs
such as: always, only, never, ever, still, just, etc.
Examples:
You will only have learned a few words.
Will you only have learned a few words?
You are only going to have learned a few words.
Are you only going to have learned a few words?

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ACTIVE / PASSIVE
Examples:
They will have completed the project before the deadline.
Active
The project will have been completed before the
deadline. Passive
They are going to have completed the project before the
deadline. Active
The project is going to have been completed before the
deadline. Passive

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