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这里不是进行时，而是动词的ing形式。这种结构有两种分析方法， 1after是介词，介词后面要跟动名词。 2这里可以看做是 时间状语从句 的简化， after i finished my homework,和after we. By then the play will have been running for three months. 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区.
2024 NFL Defense Rankings Data Analysis Sees the Dallas Cowboys
You play football as a game. So it is (27) ______ the books recommended. What with 当 so 引出的句子用于对上文内容加以证实或肯定时，不可倒装。 tom asked me to go to play football and so i did.
Would have been doing：过去将来完成进行时 表示到过去将来某个时间点，某动作已经完成了相当一部分，.
You don't play with football, you play football with your friends. The play is coming off in august. 简单地说，时态就是谓语动词。 在问题中的句子中： he is playing football. You play the football as a toy.
（1）一般使用在助动词 (have/is/do)或实意动词身上 he is very beautiful //助动词 he likes you //实意动词 （2）当没有助动词时，通常存在情态动词+实意动词或助动词（原形），就不用变 he can like you.
