"increasingly formed" is a correct and usable phrase in written English.
It can be used to describe something that is gradually taking shape or becoming more defined. Example: As the team continued to work together, a clear and increasingly formed strategy emerged.
Hydrocarbon byproducts were increasingly formed at shorter residence times while formation of partial and complete oxidation products increased with longer residence times.
As the scaffolding of global trade, logistics space is increasingly formed in the image of spatially delimited security regimes that conflate the protection of supply chains with the security of nation-states.
While the playful Western "vision of Cathay" formed in the previous century continued to thrive, a more realistic vision of China was increasingly formed through travel accounts, paintings, watercolors, prints, book illustrations, and photographs.
The longer the employment spell the lower the job-separation rate would be because the pool of employment would be increasingly formed by permanent contracts.
Then the observed average rate would decrease over time because the pool of workers in state A would be increasingly formed by type 2 workers, who have a lower outflow rate.
Research shows that other recent migrant groups to Germany have increasingly formed mixed couples.
Americans are increasingly forming like-minded clusters.
Exports may include primary commodities, but manufactured products increasingly form part of the mix.
And governments have to tread carefully because national ecosystems increasingly form part of larger global organisms.
Firms increasingly form alliances to access needed capabilities, gain knowledge and seek competitive advantage.
These networks are characterized by the extensive outsourcing, domestically and internationally, that increasingly forms the economic model for global firms.
