Future Perfect Tense

The Future Perfect Tense is used:

to talk about something that will be completed by (not later than) a certain time in the future

I'll have finished work by six o'clock tonight.

He'll have been here for a year in January.

The Future Perfect Tense is normally used with a time expression beginning with by: by then/by that time/by the 26th, etc.

Positive form

will have + Past Participle (Verb + -ed)

I	will have finished by then.
You
He/She/It
We
You
They

NOTE:

a) will is used with all persons (I, you, we, they, etc.);

b) shall is used with I or we, but in everyday speech, will is more common.

Negative form

will not have + Past Participle (Verb + -ed)

I	will not (won't) have gone by 8.00.
You
He/She/It
We
You
They

NOTE:

a) will is used with all persons (I, you, we, they, etc.);

b) shall is used with I or we, but in everyday speech, will is more common.

General questions

Will	I	have been here for a year next September? - Yes,/No,	I	will (not).
	you		you
	he /she/it		he /she/it
	we		we
	you		you
	they		they

NOTE:

a) shall is generally used as a first person question (with I or we) to make suggestions and offers;

b) will is used as a first person question with I to ask about future.

Will the death rate have increased by the end of the century?

Exercise 24. Put the verbs in brackets in the Future Perfect Tense. Then rewrite each sentence as negative or a general question.

Example: Life will have become (become) more automated by 2100.

Life won't have become more automated by 2100.

Will life have become more automated by 2100?

1. He _ (be) Foreign Minister for five years by next year.

2. In two weeks' time we _ (finish) our exams.

3. Next November we _ (be) married for fifteen years.

4. I'm sure they _ (arrive) home by five o'clock tonight.

5. Scientists _ (learn) to control the weather by 2010.

Alternative questions

Will	I	have driven for over two hundred miles or three hundred miles? - I think, two hundred miles.
	you
	he /she/it
	we
	you
	they

NOTE:

a) shall is generally used as a first person question (with I or we) to make suggestions and offers;

b) will is used as a first person question with I to ask about future.

Will the death rate have increased by the end of this century?

Exercise 25. Ask alternative questions with the following words. Give answers.

Example: The athletes/run/thirty/forty/kilometres/by the end of the race.

Will the athletes have run thirty or forty kilometres by the end of the race?

- Thirty kilometres.

1. You/graduate/from the institute/in another six/ five years?

2. The world's population/grow/to three/four billion by 2100?

3. Bill/save/$900/more/by the end of the year?

4. Your family/be/here for ten years/fifteen years/ by the end of this month?

5. The workers/complete/the new bridge/by the end of the year/earlier?