限定动词又叫谓语动词，在句中充当谓语，在人称和数上必须和主语保持一致。
限定动词
英语上根据动词在句法上是否受到主语的限定，英语动词又可以分为限定动词(FINITE FORMS OF VERBS)和非限定动词(NON-FINITE FORMS OF VERBS)。
同时还表现出时态、语态和语气的变化。如：
I PLAY BASKETBALL.
HE PLAYS BASKETBALL.
THEY PLAYED BASKETBALL YESTERDAY.
THE CARS ARE MADE IN CHINA.