"concerned beforehand" is a correct and usable phrase in written English.
It is typically used to describe someone who worries about a potential issue before it becomes a reality. Example: Joe was concerned beforehand that their presentation would not be well-received by their audience.
The report also noted that Israeli military and defense officials had raised concerns beforehand that the commandos might meet with violence as they intercepted the ship, to little apparent effect.
Brockie's main concern beforehand had been that his young players might be unnerved by the thought of the millions watching on television but it was over-eagerness that seemed to be the main danger; one early break saw Mansfield surge into the Harrogate half with a two-man advantage.
Make sure you express your expectations when you ask them to be in your wedding; you don't want to be disappointed because you didn't voice your concerns beforehand.
People who are likely to experience severe episodes or acute events should have access to information beforehand concerning how an event could develop and the possible strategies to address it.
The police and security presence at Donbass Arena was heavy in the wake of concerns expressed beforehand by English officials and the families of some players about possible racist treatment in the host countries of Ukraine and Poland.
Lauren A. Giaccone, who helped organize the protest, said beforehand that students were concerned about the president's salary, free speech issues and general management of the university.
THE OLDIE BUT GOODIE Beforehand, you might be concerned about this sexagenarian's health.
Make sure to have 40$-100$ ready to purchase the medicine beforehand if you are concerned.
But the developers were concerned that if this hole was not dug beforehand, there might be a delay getting power to the residential units, Mr. Aidala said.
Don't be concerned about destroying your makeup base by putting on SPF beforehand.
