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Use "elapsing" in a sentence
"Al Qaeda has a long time horizon, with 8 years elapsing between WTC attacks I and II."
"Beautiful streamer, follow me down, Time is elapsing and here comes the ground; Six hundred feet and then I can tell, If I'll go to heaven or end up in hell."
"You can even get there faster than usual, by decreasing the amount of time you experience elapsing with respect to the rest of the world — either by low-tech ways like freezing yourself, or by taking advantage of the laws of special relativity and zipping around near the speed of light."