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has been mounting
  • present perfect progressive of mount (3rd person singular).

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.

While astronomers and space scientists were initially skeptical about the planet nine theory, there has been mounting evidence thanks to increasingly powerful observations that the orbits of trans-Neptunian objects are indeed erratic.

From Science Daily • Jun. 9, 2026

As often in such large-scale attacks, it was preceded by warnings and criticism has been mounting over the authorities' failure to act on these advance signals, Le Cour Grandmaison says.

From BBC • Mar. 31, 2026

There has been mounting criticism of and public protest against the administration’s activities since the launch of Operation Metro Surge in Minnesota last month.

From Los Angeles Times • Jan. 28, 2026

Insiders told Salon that pressure has been mounting against Patel from inside the FBI.

From Salon • Dec. 15, 2025

Knowing that, I have been content to wait; only every day the debt has been mounting up.

From In the Days of Chivalry by Everett-Green, Evelyn