分词的用法I saw him singing now.Don't have the students studying all day.怎么看的是都分次,不是动词吗?怎么判断是不是分词

分词的用法I saw him singing now.Don't have the students studying all day.怎么看的是都分次,不是动词吗?怎么判断是不是分词 Seat的用法I saw him seated at the back of the classroom.I saw him seating himself at the back of the classroom.两句都对 I saw him coming up.coming up是什么?现在分词?可以帮我分析一下这个句子的结构吗？ i saw him taking out a paper请问,TAKING 这里是动名词还是现在分词为什么 I saw him before going home.的同义句I saw him ___ ___ ___home. 英语倒装句的问题I saw him only yesterday.Only I saw him yesterday.这里为啥不用倒装啊? 关于英语中非谓语动词的用法?在英语中非谓语动词有不定式和分词均可以表示 动作与谓语动词表示的动作同时发生那么什么时候用分词 什么时候用不定式例如:The boys and girls went to school,singi 英语过去式与过去分词用法上有什么一样?I've already seen it .I saw it on television last year.这是新概念上的一篇课文里的句子,为什么第一句用过去分词seen,而第二句用过去式saw呢 不都是表示在过去 this is the man_____last nightAwhom I saw him Bwho I saw Cwhich I saw Dwho I saw him 英语 被动语态与过去分词例如 I saw him being taken away 这句为什么不可以改为I saw him taken away ? 不是可以过去分词表被动吗? 现在分词的用法 过去分词的用法 see与saw的用法区别?我在在线翻译上翻译“我看见了你”是“I saw you,而翻译”我看见了他“是”I see him为什么前者是saw而后者是see他们用法上有什么区别? 关于see sb do或doing的用法用动词的适当形式填空.1.This morning I saw him _________ (do) his homework when I went into his room.2.This morning I saw him _________ (do) his homework for some time and then play basketball.3.When I was on I saw him ____under a tree,thinking.A.sat B.seated C.seating D.seat帮我归纳一下seated的用法,到底有没有seating的用法?还是所有的非谓语都是用seated,请用例句说明 i saw him ____(walk)into the I saw him go out just now. I saw him ____ into that room.