Grammar fix

voice concern

express worry

to say publicly that you are worried about something

collocationC1occasional

Hear it in context

Notice where the phrase sounds natural.

Several parents voiced concern about the new timetable.education
Many residents have voiced concern over the amount of traffic near schools.IELTS Part 3

Pattern: voice concern(s) (about / over something)

WrongStaff voiced their concern of the changes.

RightStaff voiced concern about / over the changes.

'Voice concern ABOUT / OVER' something. Here 'voice' is a verb meaning 'express'.

Patternvoice concern(s) (about / over something)

Choose the version that sounds natural in speech.

Stiff Residents articulated their disquiet regarding the proposal.

Natural Residents voiced concern about the proposal.

'Voice concern' is the natural (slightly formal) collocation; 'articulated their disquiet' is overwrought.

Words that usually travel with it.

Publicly expressing worry, not just feeling it quietly.