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have been observing
  • present perfect progressive of observe.

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.

"Weather satellites have been observing the ocean surface for years," said Lenain.

From Science Daily • Apr. 22, 2026

Records show that humans have been observing the red monster for millenia, and have even noticed its change in brightness over that time.

From Space Scoop • Aug. 20, 2025

For more than a decade, scientists have been observing corals that have survived bleaching, even when others have died on the same reef.

From Seattle Times • Dec. 8, 2021

Lira and her colleagues have been observing the relationship between caregivers of children with Zika and biomedical scientists in Recife.

From Salon • Oct. 17, 2021

Yes, I have been observing them all day.

From The Pony Rider Boys in the Alkali or, Finding a Key to the Desert Maze by Patchin, Frank Gee