investigate
verb (used with object)
to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
have been investigating
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present perfect progressiveof investigate.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
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.
Representatives of UTLA, the teacher’s union, have been investigating finances and other problems involving the school.
From Los Angeles Times ● Sep. 7, 2026
This year, the Justice and Treasury Departments have been investigating Iran’s use of Binance to evade U.S. sanctions since the guilty plea.
From The Wall Street Journal ● Jul. 1, 2026
Marineland has said all the beluga deaths at the park resulted from natural causes, but animal welfare officials from the province of Ontario have been investigating the park for several years.
From Barron's ● Jan. 26, 2026
Since then, researchers have been investigating whether these drugs could help prevent or slow other cancers too.
From Science Daily ● Jan. 20, 2026
Here are a couple of fellows that have been investigating the water up at Pearcy's.
From The War Terror by Arthur B. (Arthur Benjamin) Reeve
