The phrase "a frequent mistake" is correct and usable in written English.
It can be used to describe an error that occurs often in a particular context or situation.
Example: "One frequent mistake that students make in essays is failing to proofread their work before submission."
Alternatives: "a common error" or "a regular oversight".
Mr. McLachlan piles too much onto his plate for all the relationships to be explored with any depth, a frequent mistake made by young playwrights.
A frequent mistake is to give an asset away to save on inheritance tax without realising there's a possible capital gains tax liability.
Thanks to commenter Strymeo, it has come to my attention that, in the 1988 study, spelling was such a frequent mistake that Lunsford and her research partner chose to omit it from their top-twenty list.
Dr. Robert Nuzzi, chief of the marine resources bureau for the Suffolk County Department of Health Services, said Mr. McAllister might have mistaken a lettuce-like white algae for toilet paper, a frequent mistake.
Here are some other common errors researchers have identified: MISREADING SHORT-TERM RESULTS Regarding what happens in the short term as predictive of a future outcome is a frequent mistake — for example, when an investor views last year's strong performance as a sign that a manager's hot streak will continue.
A frequent mistake is launching a bi-directional social media page (for example on Facebook or Twitter) and ignoring users' posts, especially those of unsatisfied customers.
It is a fatal but all too frequent mistake, Rosmini contends, to attribute characteristics proper to the subject (fallibility, error, and so on) to the object, and characteristics of the object (necessity, immutability and so on) to the subject.
December 28 I've been given an updated Trivial Pursuit for Christmas and make the frequent mistake of imagining that entertainment is a safe category.
The most frequent mistake is existed between fine speckled and homogeneous pattern, which is a common mistake at the cell level.
