take form

idiomatic phrase

: to assume a definite or distinctive form : take shape

By the end of the day, the computer gave him billions of possible amino-acid combinations and recommended the best one. … About a minute later, he noticed that the protein was taking form.—

Michael Elliott

But in Silicon Valley one finds innovative ideas taking form not merely in such things as product design or manufacturing process, but also in employee relations.—

Edward K. Yasaki

When they got to the top, Esperanza looked out over the valley. … Below, she could see the white roofs of the cabins in straight rows, the fields beginning to take form …—

Pam Muñoz Ryan