The phrase "are mainly private" is correct and usable in written English.
It can be used to describe something that is predominantly or primarily private in nature, such as information, events, or organizations.
Example: "The discussions held during the meeting are mainly private, intended only for the board members."
Alternatives: "are primarily private" or "are mostly private".
Hospitals are mainly private.
It is composed of member-owned clubs (like football's FC Barcelona) that are mainly private companies limited by guarantee, a form of non-profit corporation.
Tchibo would be an exception, because of its already sizable stake in Beirsdorf; under the law it would be allowed to consolidate holdings without having to make an offer to Beiersdorf's other shareholders, who are mainly private and institutional investors, Ms. Raju said.
Since land trusts are mainly private, non-profit organizations, they are heavily dependent on donors and volunteers.
Its strategic products and services offered to these customers are mainly private line (including special access), dedicated internet access, digital subscriber line and MPLS.
Childcare centres are mainly private, are licensed by the Ministry of Human Resources and have been administered by the National Health and Family Planning Commission since 2013.
Where does the museum's money come from? A. Our money is mainly private.
But until now, the major foreign investors were mainly private equity funds and not global banking brands.
Most earlier attempts to capitalise on this art form and its importance for younger audiences have been mainly private initiatives, such as the Tag show at the Grand Palais in 2009 or Né du Graffiti at the Fondation Cartier.
The institutions that took part were mainly private client funds that invest in small cap businesses.
When I finally, covertly, admitted on Facebook that he had passed away several weeks after the event one of the only things, as a confessional writer, that I have been mainly private about the vultures swooped and settled, cawing with mock sympathy and very open arms.
