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
-
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.
Health officials have been investigating whether Nigeria's first case crossed paths with Kenya's first patient.
From BBC ● Oct. 24, 2026
Representatives of UTLA, the teacher’s union, have been investigating finances and other problems involving the school.
From Los Angeles Times ● Sep. 7, 2026
Since plastics are made from polymers, researchers have been investigating whether these enzymes, or the microbes that produce them, can be embedded directly into plastic materials.
From Science Daily ● Jul. 17, 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
In my opinion it never does; but its effects may be explained by the general law which we have been investigating.
From Popular Lectures on Zoonomia Or The Laws of Animal Life, in Health and Disease by Thomas Garnett
