有没有be heard doing的说法看一个例句：he is heard to sing now./he was heard to sing just now 这里为什么用sing,我想都是短暂的动作不应该用singsing吗?

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有没有be heard doing的说法看一个例句：he is heard to sing now./he was heard to sing just now 这里为什么用sing,我想都是短暂的动作不应该用singsing吗?
有没有be heard doing的说法
看一个例句：he is heard to sing now./he was heard to sing just now 这里为什么用sing,我想都是短暂的动作不应该用singsing吗?

有没有be heard doing的说法看一个例句：he is heard to sing now./he was heard to sing just now 这里为什么用sing,我想都是短暂的动作不应该用singsing吗?
有be heard doing 的用法.请看例句：
1.I often hear him sing in the morning.(改为被动语态）(我经常听到他早晨唱歌,hear sb.do sth.）
He is ofen heard to sing in the morning.
2.I heard him singing just now.(改为被动语态）("刚才我听到他正在唱歌”hear sb.doing sth.）
He was heard singing just now.

有的
see hear
这些词后面可以跟两种形式
跟 do 表示，看见，听见的是全过程
跟doing，表示，动作正在进行

恩，有，

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有be heard doing这种说法。
hear, see, watch, find等感官动词后面可以接动词原形、动词ing形式或动词的过去分词。如：
I heard him sing in the next room yesterday.
I heard him singing in the next room at 8:00 yesterday morning.（强调他正在唱歌。）
I heard him beaten in the next room.（他是被打的，用过去分词表示被动意义。）
当第一句变为被动语态后，要转换成to do的形式：
He was heard to sing in the next room.
第二、三句仍然用doing或done。
He was heard singing in the next room at 8:00 yesterday morning.
He was heard beaten in the next room.

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be heard doing sth doing是正在做 to do 是将要做都行！前者表示做过某动作或连续几个动作的被动语态；后者表示当时正在进行的动作。这个两

hear有两种用法，即hear sb do sth / hear sb doing sth，前者是强调听见的整个过程，后者是听见某人正在做什么，强调动作的正在进行。要注意的是hear ,see make等词，在改为被动的时候即要变成，sb be heard to do / sb be heard doing，这叫做被动还原。还有你说的sing是短暂的动作，则不是！这里应该强调听到的整一个过程。（...

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有没有be heard doing? 有没有be heard doing的说法看一个例句：he is heard to sing now./he was heard to sing just now 这里为什么用sing,我想都是短暂的动作不应该用singsing吗? 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 dobe heard to be doing be heard doing be heard to doing如果不存在，前两请问be heard to do/do/doing之间的区别以及是否存在be heard do 的说法 be eager to doing有没有这种说法 be surely doing有没有这种说法啊? be heard doing /do 有具体时间用doing? 有没有be not weak in doing sth的说法?be not well in可以这么用吗? 有没有be fun with,be fun to do和be fun doing这些说法? 有没有be bored doing,be bored to do,be bored in doing,be bored in to do?请问有没有这些说法有没有persuade sb from doing sth的说法呢? 有没有make a decision of doing sth.的说法? 关于be seen doing 和 be seen to do有 see sb doing 和 see sb to do,那么相应的,被动要还原to,是不是就改成sb be seen to doing 和 sb be seen to do?但好像没有sb be seen to doing 这种说法,只有sb be seen doing. 有没有 want doing 这种说法? doing shop有没有这种说法 be heard to do sth 还是 be heard doing sth? be able to 的短语有be able to doing 的说法吧有没有sb.be succeeded in doing sth.的词组?