The phrase "a frequent member" is correct and usable in written English.
It can be used to describe someone who regularly participates in a group, organization, or activity.
Example: "As a frequent member of the book club, she always brings insightful perspectives to the discussions."
Alternatives: "a regular member" or "a habitual member".
Gorsuch was appointed by George W Bush to the 10th circuit court of appeals, in Denver, Colorado, and is a frequent member of Republican-leaning supreme court shortlists.
The popularity of paid virtual goods, which account for 1/3 of MyTown's revenues, is fueling growth— although the MyTown iPhone app is free it's a frequent member of Apple's Top 50 grossing list thanks to the large volume of virtual purchases.
Otto was a frequent member of the United States national team.
General Carlos Prats, a frequent member of Allende's cabinet and commander-in-chief of the Army, responded to the coup attempt.
Also, Atrophoin-1 family which is associated with DRPLA disease (Dentatorubral pallidoluysian atrophy or Smith's disease) is a frequent member of proteins with four or five functional annotations.
"I loved the old space, but it isn't this," said Allen Lewis Rickman, 50, of Manhattan, who plays Baxter on HBO's "Boardwalk Empire" and is a frequent cast member in Centenary Stage Company's productions.
If you are a frequent flyer member, inquire about getting a day pass, usually for a nominal fee.
It is the most frequent member of the spondylarthritis group, and its prevalence ranges between 0.2 and 1.2% of general population.
Women who were abducted as girls, and who then had children in captivity, are the most frequent members to escape or be released by the rebel group.
BlaBlaCar carries out checks on the mobile phone numbers, emails and bank accounts of its users and encourages members of the community to rate each other, in turn building trust for frequent members.
Several orthopaedic surgeons from this unit are frequent members of faculty as national and international meetings.
