Future Perfect Tense

UNIT XI
FUTURE PERFECT TENSE
(Bentuk akan datang telah selesai)
A.    Penggunaan
Untuk menyatakan suatu kejadian/ peristiwa yang akan sudah selesai dilakukan / dikerjakan di waktu mendatang.
B.     Keterangan waktu
-          By …
(8 o’clock tomorrow …)
(3 o’clock next …)
(this time tomorrow …)
(the beginning of next)
(the end of next …)
-          by now
-          by next
C.    Susunan kalimat
  1. Positive (+)
(+) Subject + will/shall + have + V III
Subject
shall/will
have
Verb III
Object
I
Shall
have
written
a story
You
bought
a shirt
We
will
cleaned
the room
They
played
tennis
He
gone
to school
She
given
a present
It
swum
very fast
  1. Negative (-)
(-) Subject + will/shall + not + have + V III
Subject
shall/will
not
have
Verb ing
Object
I
Shall
not
have
writing
a story
You
buying
a shirt
We
will
cleaning
the room
They
playing
tennis
He
going
to school
She
giving
a present
It
swimming
very fast
  1. Interrogative (?)
(?) Will/Shall + Subject + have + V III ?
shall/will
Subject
have
Verb III
Object
Shall
I
have
written
a story?
We
bought
a shirt?
Will
You
cleaned
the room?
They
played
tennis?
He
gone
to school?
She
given
a present?
It
swum
very fast?

How do we make the Future Perfect Tense?

The structure of the future perfect tense is:
subject + auxiliary verb WILL + auxiliary verb HAVE + main verb

invariable
invariable
past participle
will have V3

Look at these example sentences in the future perfect tense:

subject auxiliary verb
auxiliary verb main verb
+ I will
have finished by 10am.
+ You will
have forgotten me by then.
- She will not have gone to school.
- We will not have left.
? Will you
have arrived?
? Will they
have received it?

In speaking with the future perfect tense, we often contract the subject and will. Sometimes, we contract the subject, will and have all together:
I will have I'll have I'll've
you will have you'll have you'll've
he will have
she will have
it will have
he'll have
she'll have
it'll have
he'll've
she'll've
it'll've
we will have we'll have we'll've
they will have they'll have they'll've
 

Look at some more examples:
  • You can call me at work at 8am. I will have arrived at the office by 8.
  • They will be tired when they arrive. They will not have slept for a long time.
  • "Mary won't be at home when you arrive."
    "Really? Where will she have gone?"