observe do 、doing sth 变被动的时候

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/14 08:33:51

observe do 、doing sth 变被动的时候
He observed a man go/going into the bank.（go全过程,going正在进行）
被动时要把to补出来下面两句话都对吗,如果不对,为什么?
A man was observed to go into the bank.
A man was observed to going into the bank.

第一句对；第二句不对,要去掉to
应为：A man was observed going into the bank.
感官动词see,watch,smell,notice,observe等在主动语态时后接动词do或者doing
observe sb do sth-------------被动式为sb be observe to do.
observe sb doing--------------被动式为sb be observe doing.

关于短语observe sb do sth的一道题目 see sb.doing sth.变成被动语态怎么变呢? see sb.do sth.在被动语态中,要加上省略的to,那see sb.doing sth. observe sb to do/doing 区别 feel sb./sth.+do sth.与doing sth.的区别帮个英语上的小忙～帮我用notice sb.doing sth.或者observe sb.doing sth.造个句子呗 observe sb.\sth.done的例句急! 英语问题：see sb doing sth的被动用法所有to do ,doing sth的词组 practice doing sth.和practice to do sth.的区别 suggest doing sth.与do sth.的区别 start doing sth.和start to do sth.的区别