The phrase "a regular complaint" is correct and usable in written English.
It can be used to describe a complaint that occurs frequently or is commonly expressed by individuals.
Example: "The employees have voiced a regular complaint about the lack of communication from management."
Alternatives: "a common grievance" or "a frequent issue".
Rising damp is a regular complaint, but rent is as low as £1 a month.
If there's been a regular complaint with smartphones, it's that they run out of juice too quickly.
"Kids should be outside kicking balls around, not inside staring at more screens!" is a regular complaint about children's apps.
The British government is not saying that the agency is wrong or biased, as is a regular complaint on continental Europe.
Frustration with Ramsey has been a regular complaint among Arsenal supporters over recent years, a player with clear and obvious talent having influenced key contests so rarely.
A picture of the Duchess of Cambridge drinking a smoothie on the front of the Guardian of 15 February 2012 brought forth a regular complaint: too much royalty in the paper.
Being obliged to wear a skirt even when men in similar positions wore jeans was another regular complaint.
Even the regular complaint that Hamilton has moved into tax exile (in Monaco) seems to be selective, given that several popular British sportsmen and celebrities have made a similar move, including fellow F1 world champions Nigel Mansell, Damon Hill and Jenson Button.
FAIR's latest study repeats another regular complaint: that the guests skew unacceptably conservative.
And it has offered a new opportunity to vent regular complaints about how Rome is dirty and falling apart, and how city officials are doing too little about it — except when movies are in town.
Then there is the disastrous part played by certain big firms in government IT procurement; the disappearance of much-needed tax revenue through avoidance; and the regular complaints about auditors warning a bank that a client is in trouble and then contriving to emerge from the wreckage with a commission to wind it up.
