The phrase "harbour concern" is correct and usable in written English.
It can be used when expressing worry or apprehension about a particular issue or situation.
Example: "Many community members harbour concern about the proposed changes to the local park."
Alternatives: "express worry" or "have reservations."
The 2011 Masters champion is clearly among those who harbour concerns.
But does she harbour concerns herself that other athletes, even those with unblemished skin, might be doping?
The league is believed to harbour concerns over the legitimacy of the bid's business plan and its intentions.
Although some harbour concerns over Hagel's voting record on gay rights, none of the Senate's Democrats have publicly abandoned him.
But the Treasury is thought to harbour concerns that any action that increases the cost of employment could reduce the total UK employment rate.
Many in this group are known to harbour concerns that Farage could be too divisive to win wider support for the out campaign but publicly it says it wishes Banks well.
However, while the intelligence agencies may harbour concerns about the robustness of Huawei's software, the centre has never found evidence of the fabled "backdoors" that would allow China to penetrate the UK's telecoms networks.
She said that many councils and community organisations have expressed a desire to do more to help but harbour concerns about the home office's approach as well as fears over future funding.
Wenger is believed to harbour concerns about the 35-year-old's ability to perform consistently at the highest level — especially after his latest fitness setback — and that same feeling is present towards Flamini.
This may signal the awareness of the executive branch that some stakeholders, such as private-sector insurers, still harbour concerns that the NHIS could negatively affect growth of the private insurance market.
