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had been deepening
  • past perfect progressive of deepen.

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.

Before Milei took power, Argentina -- a major lithium producer -- had been deepening ties with China.

From Barron's • Oct. 14, 2025

The humorous lines about Welton's eyes had been deepening throughout this interview.

From The Rules of the Game by White, Stewart Edward

He had been mixing on terms of equality with a class much above hers, he had been enlarging the scope of his observation, he had been deepening his experience.

From The Sailor by Snaith, J. C.

The strangely mingled emotions that had been deepening within him all this time now blended themselves in one irrepressible wish.

From Sister Dolorosa and Posthumous Fame by Allen, James Lane

The pains and discoloration had commenced two years before his admission, since which time the skin had been deepening in tint.

From Anomalies and Curiosities of Medicine by Pyle, Walter L. (Walter Lytle)