have been doing中been是助动词吗consumer and producer prices have been rising ,as have interest rates . as引导的方式状语,保留助动词可以用倒装结构如果这样是不是应该 have been rising中的have 和been 都应该保留呢

来源:学生作业帮助网 编辑:作业帮 时间:2024/12/01 17:55:04
have been doing中been是助动词吗consumer and producer prices have been rising ,as have interest rates . as引导的方式状语,保留助动词可以用倒装结构如果这样是不是应该 have been rising中的have 和been 都应该保留呢
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have been doing中been是助动词吗consumer and producer prices have been rising ,as have interest rates . as引导的方式状语,保留助动词可以用倒装结构如果这样是不是应该 have been rising中的have 和been 都应该保留呢
have been doing中been是助动词吗
consumer and producer prices have been rising ,as have interest rates .
as引导的方式状语,保留助动词可以用倒装结构
如果这样是不是应该 have been rising中的have 和been 都应该保留呢,have 和been都是助动词?rising是实义动词“?

have been doing中been是助动词吗consumer and producer prices have been rising ,as have interest rates . as引导的方式状语,保留助动词可以用倒装结构如果这样是不是应该 have been rising中的have 和been 都应该保留呢
此处的have been rising是现在完成进行时,其中have是助动词,been是be动词的过去分词,构成现在完成时,rise在be动词后用动名词形式,构成进行时,表示价格一直在上涨,所以后面只保留了助动词have.

have 都是been 助动词,和doing 构成现在完成进行时。