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had been varying
  • past perfect progressive of vary.

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.

Todd Dalsing, Dubuque Regional Airport’s director, said American Airlines had been varying the timing of its scheduled flights to Chicago, its single destination from Dubuque, over the past two years.

From New York Times • Nov. 23, 2022

"I have thought of all that, aunt Caxton," Eleanor said, while the colour which had been varying in her cheeks fixed itself in two deep crimson spots.

From The Old Helmet, Volume II by Warner, Susan