Looking on the internet deeply has found these results:

formed by is the most popular phrase on the web.

formed from 144,000,000 results on the web	formed by 1428,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	It may also be formed by illumination on mixtures of chlorine and ozone. On that occasion the crew was formed by Leonida Robbiano and the journalist Mario Massai. Interesting the lodge formed by arches overlooking a courtyard. The water body allegedly formed by Bhima is an artificial tank called Bhimlat kund. The fruit is formed by an about 1 cm long capsule with 3 The mirrored ceiling is formed by a roughly 3 cm thick sandwich panel, onto which a metallized polyester film is laid.

formed from

144,000,000 results on the web

formed by

1428,000,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

It may also be formed by illumination on mixtures of chlorine and ozone.
On that occasion the crew was formed by Leonida Robbiano and the journalist Mario Massai.
Interesting the lodge formed by arches overlooking a courtyard.
The water body allegedly formed by Bhima is an artificial tank called Bhimlat kund.
The fruit is formed by an about 1 cm long capsule with 3
The mirrored ceiling is formed by a roughly 3
cm
thick sandwich panel, onto which a metallized polyester film is laid.