by 后面的动词用什么形式?
回答
爱扬教育
2022-06-29
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动名词，指的是动词ing形式的一种，兼有动词和名词特征的非限定动词。
扩展资料
Some are singing and dancing under a big tree. Some are drawing by the lake.
有的在大树下唱歌跳舞。有的在湖边画画儿。
Your son will be all right by supper time.
你的儿子在晚饭前会好的。
The monkey was hanging from the tree by his tail and laughing.
猴子用尾巴吊在树上哈哈大笑。