required
v.v. to need something because it is necessary or because of a rule. You use this when something must happen for another thing to work.
v. to need or demand something as a necessary condition or consequence. Often used in the passive voice to describe mandatory actions or legal obligations.
The job required a lot of travel.
The local council required all residents to submit their recycling plans by the end of the month.
While the initial phase of the experiment required minimal supervision, the subsequent chemical reactions demanded constant monitoring to ensure the safety of the laboratory staff.
Transitive; often followed by a noun phrase or a 'that' clause.
The rule requires to wear a tieThe rule requires you to wear a tieWhen followed by an infinitive, this verb requires an object (person) before the 'to' part.