burgeon
verb (used without object)
to grow or develop quickly; flourish.
had been burgeoning
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past perfect progressiveof burgeon.past perfect progressive
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
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.
Demand for electricity had been burgeoning 7% annually and was expected to continue growing at that pace.
From Time Magazine Archive
