9.8 The simple future, the future progressive, the future perfect
9.8B
Study:
l**l
Write:9.8C
Write:The future perfect simple and the future perfect progressive tenses
[> LEG 9.43-44]1 We often use the future perfect simple with by and not ...till/until [> 7.3B] to show that an action
will already be completed by a certain time in the future.
We use it with verbs which point to completion, like complete, finish and retire:
I will have retired by the year 2020. I won't have retired till the year 2020.2 We often use the future perfect progressive with verbs like learn, lie, live, rain, sit, wait and
work which naturally suggest continuity [> 7.3B, 9.5B, 9.6B] to say that what is in progress now
will be in progress in the future:
By this time next week, I will have been working on this book for a year.Supply the future perfect simple or progressive. Note where both are possible.1 They the new bridge by the end of the year, (complete)
2 By the end of this week, I seventeen weeks for my phone to be repaired, (wait)
3 Do you realize that on August 15, we in this house for fifty years? (live)
4 I hope I this report by the end of the day. (finish)
5 She for work before the children get home from school, (leave)
6 We non-stop for fourteen hours before we get to Calcutta, (fiy)
7 They work on the great dam by the end of this decade, (complete)
8 Radio waves from earth for light years before anyone picks them up. (travel)Context
Put in the simple future, the future progressive or the future perfect simple.FLYING JUNK
By the middle of the 21st century we (build)^1 space stations which (circle)(^2) the earth and (probably circle) (^3) the moon, too. We (establish)
(^4) bases on planets like Mars. At present, we use radar to 'watch' nearly 8,000
objects in space. In addition, there are at least 30,000 bits of rubbish from the size of marbles to the
size of basket balls flying round the earth. These (increase)^5 in number by the year
2050 and (orbit)^6 the earth. All these bits and pieces are watched by NORAD (North
American Radar Defence Command). NORAD (have)^7 more and more rubbish to
watch as the years go by. Some bits fall back to earth, like the Russian satellite C954, which crashed
in the Northern Territories of Canada in 1978. Crashing junk could give us a bad headache. Most of
the stuff (stay)^8 up there (we hope)! The sad fact is that we who are alive today (not
clear up)^9 our own junk tomorrow. Perhaps we (just watch)^10 from
some other (safe) place as it goes round and round the earth!
Perhaps we'll be watching ...