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have been spreading
  • present perfect progressive of spread.

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.

Demonstrations have been spreading beyond Tokyo with rallies organised in other major cities like Osaka, Kyoto, and Fukuoka.

From BBC • May 7, 2026

Birds have been spreading a new clade of the H5N1 avian influenza virus, 2.3.4.4b, around the world since 2021.

From Science Magazine • Dec. 5, 2024

Death cap mushrooms, for example, have been spreading throughout the western U.S. and look similar to the common puffball.

From National Geographic • Feb. 14, 2024

Bed bugs may not have been spreading a lot during the pandemic, but deep reservoirs of them were still thriving worldwide.

From Scientific American • Oct. 13, 2023

I could have been spreading on this jam a little thick.

From "The Light in Hidden Places" by Sharon Cameron