experiment
noun
a test, trial, or tentative procedure; an act or operation for the purpose of discovering something unknown or of testing a principle, supposition, etc..
had been experimenting
-
past perfect progressiveof experiment.past perfect progressive
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
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.
The researchers had been experimenting with especially small magnetic disks, shrinking them from several micrometers down to just a few hundred nanometers.
From Science Daily ● Mar. 27, 2026
Knowing this, Corps biologists had been experimenting with draining a reservoir known as Fall Creek until it nearly replicated the original river channel.
From Salon ● Nov. 2, 2023
He had been experimenting with acrylic paint, which is easy to mix and fast-drying, to create striking designs.
From BBC ● Oct. 1, 2023
Mr. Abrahamsen said he had been experimenting with the effect since before even “Schnee,” he said.
From New York Times ● Dec. 12, 2019
Leo had been experimenting with all sorts of weapons based on the Archimedes sphere that he’d recovered in Rome.
From "The House of Hades" by Rick Riordan
