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have been strengthening

  • present perfect progressive
    of strengthen.
    strengthen
    verb (used with object)
    to make stronger; give strength to.

Example Sentences

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See Examples For:

Cantwell said Modi’s trade policy is focused on agriculture, and the two governments have been strengthening trade relations.

From Seattle Times Feb. 25, 2024

Ties between Moscow and Ouagadougou have been strengthening since the military took power in two successive coups in 2022.

From BBC Jan. 27, 2024

Chinese and Russian officials have been strengthening their military ties in recent years, and the two nations have been growing closer in part because of the highly personal bond between Mr. Xi and Mr. Putin.

From New York Times May 24, 2022

Many companies in the U.S. have been strengthening their COVID-19 rules, mandating vaccination and delaying back-to-office plans as the Omicron variant increases infections across the country.

From Reuters Jan. 15, 2022

For months they have been strengthening their fortifications, and getting in ammunition and supplies in secret.

From At the Fall of Port Arthur Or, A Young American in the Japanese Navy by Edward Stratemeyer