What is a predicative in English? What part-of-speech words can be used as predications?

Predicate is a component that can form a predicate with a copulative verb. It can be an adjective, infinitive or clause. Connective verbs are divided into three categories: be verbs and sensory verbs (smell, sight, taste, feeling, sound, etc. ), and "become". . . "get, become, turn, go and other verbs.

He is a student.

His face turned red.

This cake looks delicious.

In these three sentences, students, red and diligence are predicative.

Also, my wish is to be a doctor.

I suggest you go now.

In these two sentences, in the first sentence, be doctor is predicative, and in the second sentence, that clause is predicative.

Object complement is a supplementary explanation of the object, such as:

What you said made him angry.

Anger is the object complement, which complements the state of the object he.