百度作业网英语:为什么这里介词后不加ing
来源：学生作业帮 编辑：百度作业网作业帮 分类：英语作业 时间：2024/06/01 00:56:04
英语:为什么这里介词后不加ing
He often goes to school after he plays football 为什么play不加ing?难道after不是介词?
He often goes to school after he plays football 为什么play不加ing?难道after不是介词?
after可做介词也可做连词.所以 after后可加动词ing或一个句子,加句子时用作时间状语从句,主句用一般现在时,从句也用一般现在时 he plays football 是一个句子,此时after用作连词.因此play不加ing.加ing的情况如：He often watches TV after finishing his homework.