有一读者问这样一句话：
(1)“My life has only just begun,” I said to myself, “but now everything is gone.”
这里的现在完成时has begun所造成的结果在哪里？
有时由于时过境迁，现在完成时的动作所造成的结果已不复存在，如你所举的例中的has begun的结果即由于but now everything is gone而不复存在了。再如：
(2)I have seen the book in the bathroom, for years, but now no one can find it. （现在完成时have seen的结果因but now no one can find it而不存在了）
(3)The house has been painted , although no trace of paint can now be detected. （现在完成时has been painted的结果因although no trace... detected而不存在了）
