- present perfect progressive of harden.
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.
“We have been hardening these systems since last summer,” Christopher Krebs, who runs the Cybersecurity and Infrastructure Security Agency for the Department of Homeland Security, said this month.
From New York Times • Sep. 27, 2020
Candidates in state and local races increasingly have been hardening their stances on the industry.
From Fox News • Oct. 23, 2019
The battle lines have been hardening on several fronts, Reuters has learned.
From Reuters • Oct. 5, 2017
The battle lines have been hardening on several fronts, Reuters has learned.
From Reuters • Oct. 5, 2017
No wonder that, though all these days I have been hardening my elbows and toughening my neck, at the end of my ten shots I fell over gasping.
From At Plattsburg by French, Allen
