form
noun
external appearance of a clearly defined area, as distinguished from color or material; configuration.
has been forming
-
present perfect progressiveof form (3rd person singular).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.
A lava dome has been forming near the center of Kikai caldera for approximately 3,900 years.
From Science Daily ● Jul. 29, 2026
This week, gold is breaking out above an upward channel that has been forming over the past six weeks, following a breakout above a bull flag pivot at $3500.
From Barron's ● Oct. 17, 2025
The plan to take them to India and Mexico has been forming for more than a year, said Lina Marcela de los Ríos Morales, director of animal protection and welfare at Antioquia’s environment ministry.
From Seattle Times ● Mar. 2, 2023
A small tributary stream that once flowed into the Madison River now flows into Quake Lake where a delta has been forming since.
From Textbooks ● Jan. 1, 2017
Around the whole, the embryonic tissue has been forming into a strong protective covering, some of which finally becomes cartilage, and some bone.
From Embryology The Beginnings of Life by Gerald R. Leighton
