Yes, interesting link from the BBC, thanks.
However, I think in the penultimate para, the author at the BBC site should have said:
---------
Simple forms
often go with permanent ideas - but if you are asking someone this
question, then you
INTEND TO SAY/MEAN
that
they will not stay permanently, their
stay will be temporary, they're going to leave at some point.
[Thus you
should be using the progressive/continous form, and not the simple
forms]
instead of the:
Simple forms
often go with permanent ideas - but if you are asking someone this
question, then you
believe that they will not stay permanently, their
stay will be temporary, they're going to leave at some point.
--------