- past perfect progressive of crumble.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
When COVID-19 took hold in the United States, the country’s public health infrastructure had been crumbling for years.
From The Verge • Jun. 3, 2021
My ramshackle mental defences had been crumbling for a while.
From Nature • May 7, 2018
After the riot, this corner parcel was the site of an abandoned school that had been crumbling, which was torn down after a girl playing in the ruins was struck by a falling brick.
From Washington Times • May 8, 2016
But even before the Libby indictments, the wall of silence had been crumbling.
From Time Magazine Archive
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Since the beavers had left, the dam had been crumbling and loosening gradually, until it had become just a question of time before it would give way altogether, and drain the flooded land behind.
From "The Incredible Journey" by Sheila Burnford
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