- past perfect progressive of concentrate.
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.
While Adda had been concentrating on her comp, the captain had donned a full suit of gold and black armor, covered with the long coat Adda associated with captaincy.
From The Verge • Sep. 13, 2018
The drones are unarmed and had been concentrating largely on northern and western Iraq.
From Washington Times • Jun. 13, 2014
With the book done, she told friends she had been concentrating on turning part of her research on Petraeus into a dissertation, to complete her doctorate.
From Time • Nov. 10, 2012
BBC weather forecaster Peter Gibbs said a large area of rain had been concentrating over south-west England.
From BBC • Jul. 7, 2012
In fact, while the crowd was roaring alongside him, he had been concentrating his thoughts, startled at how the town had aged.
From "One Hundred Years of Solitude" by Gabriel Garcia Marquez
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