have been strengthening
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present perfect progressiveof strengthen.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
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.
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