3.172 describing states

A few transitive verbs can be used with an adjective as their complement to say that someone or something is in a particular state when something happens to them, or is preferred to be in that state.

Here is a list of verbs which can be used in this way:

Sometimes a past participle or a present participle describing a state is used as the complement.

This participle structure is like a phase structure. See paragraphs 3.205 and 3.213.