My taxi will
be coming in half an hour. (future
progressive; the speaker must have called for a taxi and now she/he knows
when the taxi is coming)
My professor is
lecturingtonight in the conference
room. (future progressive; specified time=tonight).
I will
be an English teacher when I grow up.
(simple
future)
By the year 2050, the world
population will have doubled.
(future
perfect; the population will double itself -future action will be completed-
before the year 2050)
The piano concert starts
in two hours. (simple present; specific
time was given)
At 6p.m. the participants
for the AIDS Marathon will have been running
for
five hours. (future
perfect progressive; it emphasizes the time of their run)
I will
pay for my car when I get a raise. (simple
future)
When you come back from
your party, I will be sleeping.
(future
progressive; the speaker knows what will happen when the other subject
comes back)
