"retain involvement" is correct and usable in written English.
It is generally used to mean that someone should continue to be involved/active in a particular situation/activity. For example, "We must try to retain involvement from our members to ensure that our organization is successful."
There are many ways in which we retain involvement in and understanding of practice – through partnerships with agencies, undertaking research with and about social work services, and people who use these services, including parents and carers.
Where it is safe to do so, it is almost always in the best interests of children to have a relationship with and retain involvement with both their parents.
"The originate-to-distribute model needs the originator to retain involvement in collection, and to keep part of the risk," says Alessandro Profumo, the chief executive of UniCredit, an Italian bank.
Some clinicians also expressed wanting to retain involvement in inviting service users to join the register [ 14].
Reminders, detailed guidance and routines were used by care partners to retain involvement of the person with dementia.
WRU national women's rugby manager Caroline Spanton said: "We want to create a pathway for girls that fosters participation, retains involvement and develops talent.
Sónar HQ retains involvement with booking and makes sure that visual arts and technology, now core components of the Sónar concept, are given their due.
She strives to engage and retain girls' involvement in school.
Signing to 4AD also means that she has been able to retain her involvement in the running of Chemikal Underground.
Yesterday, the 63-year-old Kroenke vowed not to leverage the club's cashflow in order to fund his purchase and retain fan involvement.
Last year Clegg told Cameron that the police and MI5, which want to retain UK involvement in most of the justice measures, should be given a veto.
