watch tv is fun与watching tv is fun哪个是对的为什么?

问题描述:

watch tv is fun与watching tv is fun
哪个是对的为什么?

如果放在句子开头用watching tv is fun,因为watch要做动名词打头

watching tv is fun
名词+系动词+表语

Watching Tv is fun是对的,watch在这里作动词,是不能做句子主语的,要用动名词
watching做句子主语