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had been amassing
  • past perfect progressive of amass.

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.

Even before the current outbreak, the United States had been amassing millions of mpox vaccines for years.

From Los Angeles Times • May 30, 2023

Demonstrators had been amassing for several days to protest the police killing of George Floyd in Minneapolis.

From New York Times • Jun. 2, 2020

But, when he wore it, the suit was a reminder that since the late nineteen-seventies he had been amassing a work of sober wit and coherence—and also, it seems, deepening ambivalence about life in America.

From The New Yorker • Jun. 23, 2019

Through his investment fund, Strategic Holdings, Bonomi had been amassing shares in the famed all-inclusive resort chain, and the AMF wanted him to declare his intentions.

From BusinessWeek • Jul. 17, 2014

Then he gave away all the wealth he had been amassing for years, till he had nothing left.

From Mystics and Saints of Islam by Field, Claud