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，

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...

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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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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。（语法这个东西每天都在变的，不要以为老师教的，书上写的语法是亘古不变的。掌握基本的语法是很必要，自己再去揣摩下吧~~）

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