又被称为“限定性动词”（finite verbs），该动词被主语所有，所以是限定性动词

谓语动词是句子的核心，而非谓语动词只能出现在句子的非核心部分

及物动词

不及物动词

系动词

谓语动词人称变位

I am, I eat

She is, She eats

They/You are, They/You eat

谓语动词时态变位

I eat, She eats, They eat

I ate, She ate, They ate