watch sb doing 在过去式中要变成watch sb

watch sb doing 在过去式中要变成watch sb hear sb doing sth.还是hear sb do sth.在过去式中怎么用?英语中为什么过去式中会出现ing形式?尽量写全点.有点多,呵呵. watch sb do sth中do过去式怎么变?无论在什么句式里,永远不变吗? 用watch sb do造句用watch sb do ,watch sb doing造句 watch sb.do sth.与watch sb.doing sth.的区别!急用!在第八单元“Is there a post office near here?中,课本47页,Section B 部分的 2b,Anna说的”I love to watch the monkeys climbing around.在这个句子中,运用的搭配是watch sb. watch sh do sth 还是watch sb doing sth 请问什么时候用 see sb doing sth 什么时候用 look at sb doing sth什么时候用 watch sb doing sth watch/see/hear+sb+do sth 和watch/see/hear+sb+doing sth watch sb.do sth.与 watch sb.doing sth.有什么区别 watch sb. do sth. 与 watch sb. doing sth.的区别拜托了! watch sb do sth 与watch sb doing sth都区别 watch sb.do sth.与 watch sb.doing sth.的区别是什么? watch sb do sth和watch sb doing sth有什么区别 watch sb do和watch sb doing的区别是什么 hear也是这样用么? watch sb do sth和watch sb doing sth的区别和造两个句子 英语中 sb.sth doing see/hear/watch sb doing sth 这个语法对吗? watch sb 后面接啥子呢?do还是doing?