Expressing future time
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Using will | page 4 of 7 |
Using will to make predictions about the present
The present predictive use is quite rare and is similar in meaning to must when
used to describe logical necessity 
:
Well, I know you had trouble, but I'm sure there will be places in Birmingham because it's much bigger. (Bank of English)
The habitual predictive use refers to the frequency with which something happens. It can be used to describe characteristic behaviour:
We don't really want you hanging around, and that's one reason that some midwives will say, "No, don't have a bath when your waters have gone". (Bank of English)
The habitual predictive is also used to make timeless statements of predictability, whether about scientific matters:
Water will boil at 100° celsius at sea level.
or about matters of folk wisdom:
Doesn't it ever worry you that power will corrupt everyone in the end?
(Bank of English)
In these two examples, the present simple tense could be used without much change in meaning. This should not be surprising, as the present simple is used to describe habits.
Introduction
Using will to make predictions about the present
