The phrase "a frequent example" is correct and usable in written English.
You can use it when referring to something that occurs often or is commonly cited as an illustration of a point.
Example: "In discussions about climate change, rising sea levels are a frequent example of the impacts of global warming."
Alternatives: "a common instance" or "a regular example".
A frequent example of the second situation is the exchange of printed purchase order and acceptance (sometimes called 'acknowledgment') forms.
A frequent example of a design principle is to provide two paths to a successful interaction; one with clear, distinct steps for the beginner user and the other with "short cuts" for expert users.
A frequent example of missing core data is when peptide assignments and protein identifications are not uploaded, but only spectra information is provided.
A study of adolescent mass murderers found that preoccupation with violent themes, of which martial arts was a frequent example, was documented in about half of the sample of murderers [ 6].
A frequent example of this issue is the inclusion of example code shipped with the "Numerical Recipes" books (e.g., [ 9]), in order to facilitate development by adoption of readily available implementations.
This constraint problem is, for example, a frequent case on Twitter microblogging platform.
The surprising stories of king crab and squat lobster evolution from hermit crab ancestors are examples of a frequent lesson in the era of DNA-based genealogy — looks can be deceiving.
"The Jeffrey Deskovic Foundation is very proud to have been involved in helping to undo the wrongful conviction and imprisonment of William Lopez, an innocent man from Brooklyn, who spent nearly a quarter of a century behind bars in an all too frequent example of extreme prosecutorial misconduct," Jeffrey told me.
Look a the most frequent example.
Gaucher's disease is an excellent and the most frequent example.
Another frequent example happens when a user belongs to multiple groups with distinct permissions to a common target resource.
