be heard to do be be heard to be doing be heard doing be hea

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/13 07:27:56

be heard to do be be heard to be doing be heard doing be heard to doing
我知道前两个是对的,后两个存在吗?若存在
四个进行比较,有何区别
be heard to do
be heard to be doing
be heard doing
be heard to doing
如果不存在，前两者请比较

主动语态中,hear只能接不带to的不定式或动名词作宾语,即：hear sb do ；hear sb doing
在被动语态中,要将不定式前加上to,即：be heard to do；be heard doing

你所提是在被动语态中,所以be heard to doing不存在.
be heard to do 被听说将去做某
be heard to be doing 　是to do 的进行时：被听说正在做某事
be heard doing 被听说（近期）一直在做某事

另,不定式一般时、进行时和完成时的区别
He is believed to come.(=It is believed that he will come.) 要来,还没来
He is believed to be coming.(=It is believed that he is coming.) 正在来路上
He is believed to have come.(= It is believed that he has come.) 已经来了

be heard to do be be heard to be doing be heard doing be hea be heard to do sth 还是 be heard doing sth? 1.be heard to do与be heard doing的区别请问be heard to do/do/doing之间的区别以及是否存在be heard do 的说法有没有be heard doing的说法 I had to shout to be heard. be to do与will be doing there be...doing/there be...to do 用 be doing 和be doing to do 造句三个 be doing/to do,will be doing区别 seems to be doing pretend to be doing