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.

A British aerospace company that had been developing a replacement for the Hawk T1s went into administration last week.

From BBC • May 22, 2026

Plans for union had been developing for at least 400 years.

From The Wall Street Journal • Mar. 18, 2026

Among the teams below him, TBD Lab houses the new pricey scientists, who will work on future AI models, and the Fundamental AI Research Team, or FAIR, which had been developing the Llama models.

From Barron's • Oct. 24, 2025

They hope to complete the copper-nickel mine that PolyMet had been developing for several years, and to eventually build a separate mine next door in an even larger ore body that Canada-based Teck controls.

From Washington Times • Jun. 7, 2023

Their opportunity had been developing since Memorial Day, when Senator Henry Jackson of Washington called at Livermore.

From "Big Science" by Michael Hiltzik