- present perfect progressive of double.
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.
Cases have been doubling about every 7.6 days in the United States, said Trevor Bedford, a computational biologist at the Fred Hutchinson Cancer Center.
From Washington Post • Jul. 30, 2022
Sales have been doubling every year in the past six years, but it too is a small player, having sold 70,000 devices.
From BBC • Feb. 21, 2022
Since September, local governments have been doubling down on meeting energy consumption targets set by Beijing to ensure China’s carbon emissions peak by 2030.
From Seattle Times • Nov. 1, 2021
Since June, however, its cases have been doubling every seven to 10 days.
From Los Angeles Times • Aug. 18, 2021
We are doubling our imports and exports; we have been doubling them since 1749—about every 16 years.
From Recollections of Old Liverpool by Nonagenarian, A