The phrase "are frequently interested" is correct and usable in written English.
It can be used when discussing the general tendency or habit of a group of people to show interest in something on a regular basis.
Example: "Students are frequently interested in learning about new technologies and their applications in various fields."
Alternatives: "often show interest" or "regularly express interest".
Since then, when I first meet an entrepreneur, they are frequently interested in the key factors that contributed to Badgeville's successful launch.
Philosophers of science are frequently interested in the determinism or indeterminism of various theories, without necessarily starting from a view about Leibniz' Principle.
While there is sometimes interest in latent classes, researchers across many fields of inquiry are frequently interested in quantifying the effects of covariates on the overall mean count while adjusting for unexplained heterogeneity.
Ecologists are frequently interested in the processes that "fit" organisms to their environment.
However, researchers are frequently interested in genes that are over-expressed in a unique tissue type as they can serve as suitable candidates for marker genes.
In applications we are frequently interested in the covariance in terms of particle numbers (8) C i j = (n i - 〈 n i 〉 ) n j - 〈 n j 〉.
Despite the wide availability of sophisticated tools for simulation, optimization and synthesis of chemical processes, the user is frequently interested in using the 'best available model'.
If these mitigating processes are weak enough, an increase of mutagenic substances in the environment could easily lead to a rate of mutation accumulation that might allow extinction within time frames that are frequently of interest to conservation biologists.
Interests are frequently assessed by the use of "interest inventories".
"Local government is heavily influenced by pecuniary interests, and the civic interests are frequently subordinate," Mr. Amper said.
The three independents all represent sparsely populated rural constituencies whose interests are frequently at odds with Australia's urbanized majority.
