The phrase "beyond their competence" is correct and usable in written English.
You can use it to refer to a situation in which someone has a lack of ability or authority to do something. For example, "The manager was unable to answer the question, as it was beyond their competence."
How dare these interlopers into literature's sacred groves judge what is beyond their competence?
"For 200 years, federal judges have had the brains and the motivation to deal with cases people might assume are beyond their competence.
Such assertions are precisely what disturb lawyers who say that some document preparers are misleading consumers by claiming to be able to handle matters far beyond their competence.
Politicians have become used to being preached at by members of the Church on issues that are arguably beyond their competence.
Instead, Congress has left it largely to the courts to check the executive; they can do so piecemeal, but it is plainly beyond their competence to devise a whole new set of rules.Congress has not been wholly idle.
To care for someone in a situation like this is beyond their competence and beyond what it is reasonable to expect of them". Rodgers' long-delayed trial was due to begin at Nottingham crown court on March 6.
This may take them beyond their own competence.It also makes one wonder what precisely such credit ratings are for.
By learning from more experienced workers, the apprentices are able to go beyond their current competence (Andersson and Kalman 2010).
"There are fantastic restaurants in Brazil, some of them listed on the Michelin Guide, that have not operated delivery because it's a big challenge and requires them to go beyond their core competence.
Clinicians have a vital role in promoting patient safety that goes beyond their technical competence.
We therefore set out to explore what roles such units heads need to play that go beyond their technical competence and that help promote uptake of effective interventions and delivery of high-quality services.
