I think playing basketball is boring 又不是正在进行时,为什么要加ing?
问题描述：
I think playing basketball is boring 又不是正在进行时,为什么要加ing?
答
把这个句子分为两部分：I think和playing basketball is boring.
第二部分palying basketball is boring是一个句子.只有名词才能做句子主语.play+ing变成动名词,所以加ing.
楼主,明白否?