Generally speaking, it is nouns, adjectives, modal verbs, relative verbs, non-act verbs and some act verbs that serve as predicate, and they usually judge and describe the subject.

• 谓语通常由名词,形容词,能愿动词,关系动词,非动作动词和一小部分动作动词充当,语义上谓语通常表示判断,描述。