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have been fortifying
  • present perfect progressive of fortify.

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.

The two U.S. allies have been fortifying security ties as a counterbalance to China's growing military strength.

From Reuters • Oct. 18, 2022

Ukrainian cybersecurity professionals have been fortifying the defenses of critical infrastructure since 2017, with more than $40 million in U.S. assistance.

From Seattle Times • Jan. 15, 2022

Poland, Lithuania and Latvia have been fortifying their borders with Belarus, and have managed recently to stop thousands of people trying to enter their countries.

From Seattle Times • Sep. 2, 2021

In the past month, these extremists have been fortifying their bunkers, bolstering their numbers.

From Time Magazine Archive

We have been fortifying still more; and I would advise you not to neglect such a precaution altogether.

From Satanstoe by Cooper, James Fenimore