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has been strengthening
  • present perfect progressive of strengthen (3rd person singular).

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.

As Microsoft’s control over OpenAI lessens, OpenAI has been strengthening its relationship with Amazon.

From MarketWatch • Apr. 13, 2026

In recent times, Rheinmetall has been strengthening its presence in the eastern flank of the North Atlantic Treaty Organization, as local demand for weapons and artillery rapidly increases.

From The Wall Street Journal • Nov. 3, 2025

The greenback has been strengthening alongside interest rate hikes, making dollar-denominated oil more expensive for holders of other currencies.

From Reuters • Apr. 17, 2023

Japan has been strengthening defense in its southwest and recently placed missile units on remote islands as deterrence in case of an emergency involving Taiwan.

From Seattle Times • Apr. 11, 2023

All the past two summers it has been strengthening and nourishing my sick body and soul, as never before.

From Complete Prose Works Specimen Days and Collect, November Boughs and Goodbye My Fancy by Whitman, Walt