His hobby is playing football这里play为什么加ing

问题描述:

His hobby is playing football这里play为什么加ing

因为要做is的表语,所以要名词形式.所以动词变动名词,加ing
请及时采纳,多谢!是动词后都要加名词么不是。is后也可以用形容词做表语。例如:He is tall.is后不能加动词?is后不能加动词原形。可以加动词进行式,不定式等。