请帮忙分析一下这个英语句子的结构
I happened to know it. 句子中的to know 做什么成分。 谢谢
推荐回答(5个)
happen to do sth.是固定搭配,表示“恰巧知道某事”
这里的to know 是动词不定式,happen to know 做谓语
这句话的意思是我刚好知道,
happen to 在这里是词组,碰巧,刚好的意思
所以know 其实是to的宾语
happened to 是固定短语 意思是碰巧
happened to know做谓语成分
to know是动词不定式啊!
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