"unergative verb"的定义和意义

What is an "unergative verb"?

An unergative verb is a type of intransitive verb that describes an action performed by the subject, where the subject is the doer of the action. Unlike unaccusative verbs, which indicate that the subject undergoes a change of state, unergative verbs focus on the subject actively carrying out the action. For example, in the sentence "He runs every morning," the verb "runs" is unergative because the subject "he" is actively performing the action. Other examples include "She sings" and "They laughed." Unergative verbs are important for expressing actions where the subject is actively involved in the event.