是He is in the car 还是 He in the car

问题描述:

是He is in the car 还是 He in the car
到底什么时候需要加系动词,什么时候不需要?详细点`谢谢

是 He is in the car
系动词也是动词的一种,在句子成分中属谓语,第二句He in the car 中缺谓语成分不能构成句子