tunnel
noun
an underground passage.
had been tunnelling
-
past perfect progressiveof tunnel.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.
Luc Pongo Mwamba, provincial director for Congo's artisanal mining agency SAEMAPE, said workers had been tunnelling underground at the mine near the provincial capital Tshikapa when Tuesday's accident occurred.
From Reuters ● Jun. 9, 2022
It passed over and through dark and awful chasms, that the river, as it came down from the Alps, had been tunnelling for thousands of years.
From Zigzag Journeys in Northern Lands; The Rhine to the Arctic; A Summer Trip of the Zigzag Club Through Holland, Germany, Denmark, Norway, and Sweden by Butterworth, Hezekiah
