investigate
verb (used with object)
to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
has been investigating
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present perfect progressiveof investigate (3rd person singular).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.
Christine Wu, a researcher at the University of Illinois Chicago College of Dentistry, has been investigating whether cranberry juice could help protect teeth from harmful bacteria.
From Science Daily ● Oct. 29, 2026
The NFL has been investigating an incident that led to Nacua being the defendant in a civil lawsuit.
From Los Angeles Times ● Sep. 8, 2026
New Zealand has been investigating a social media ban for over a year, after neighbouring Australia implemented its world-first legislation in December.
From Barron's ● Aug. 24, 2026
The ICC has been investigating allegations of war crimes in Darfur for more than 20 years since the previous round of violence in the 2000s.
From BBC ● Jul. 8, 2026
Mr. Saville Kent, who has been investigating the cause of failure in connection with the oyster fisheries of Victoria, not so long ago, has made some interesting recommendations.
From The Art of Living in Australia ; together with three hundred Australian cookery recipes and accessory kitchen information by Mrs. H. Wicken by Philip E. Muskett
