The part of the sentence "should be conducted before" is correct and usable in written English.
You can use it when you are talking about an action or process that needs to be done or completed before something else happens. For example: The environmental impact assessment should be conducted before any construction begins.
An inspection should be conducted before such failure takes place.
But others say much more research should be conducted before commercial-scale operations begin.
Due to their habitat's singularity, exact species identification should be conducted before juveniles are released.
In Colorado, the state owns any archaeological resources on public land, and in a July 12 letter, Ms. Collins told Mr. Auriemma that "a complete paleontological survey" should be conducted before the state approves plans for the golf course.
Lawyers for Mr. Manning say that there are flaws in the prosecution's case, which is almost entirely circumstantial, but that at the very least tests of the available physical evidence should be conducted before his execution.
The Democrats believe that participation should be voluntary, that exemptions should be granted for mothers of 3-year-olds, that assessments should be conducted before a job search, and that benefits should be extended to those who wish to attend four-year colleges.
Any trial of Mr. Milosevic should be conducted in Yugoslavia before Serbian judges.
The interview scheduled for the first week should be conducted within two days before or after the scheduled date.
Further studies should be conducted in the regulated abattoirs in the country since no studies have been conducted before.
In the initial condition, authentication process of each node should be conducted at the first place, before the session key is generated.
The first of such antenatal visits should be conducted in the first trimester (before 14 weeks of gestation) [ 1].
