Its waning has been so gradual that it may seem impossible to pin down in time.
At first glance, it may seem impossible that it could.
It may seem impossible to think about maintaining good health when it's difficult to simply get through each day.
It may seem impossible that a world like this could live in harmony with nature as it by definition pollutes, invades, and destroys the nature around us.
It may seem impossible to imagine now in a billion-dollar industry, but a $25,000 appearance fee was a big deal in 1960.
Though it may seem impossible, both groups, those who say Paris is just words and those who call it a triumph, are probably right.
It may seem impossible to get the camping kit within the carrying capacity of the bicycle, but correspondence which has been going on in the "C.T.C.
It may seem impossible to pick out a serial killer roaming the highways of a sprawling metropolitan region, but the task is far from hopeless.
While it may seem impossible to recreate the sound of a lost tongue, Mr. Hoberman said the process was not all that mysterious because the dictionaries were transliterated into English.
It may seem impossible to imagine that a technologically advanced society could choose, in essence, to destroy itself, but that is what we're now in the process of doing.
It ought to be a realisable dream – it is a reality in egalitarian corners of northern Europe – but after an election in which Britain rejected moderate social democracy in favour of an inequality-indifferent Conservative government, it may seem impossible.
