作业帮过去一直在不断的做某事,英语应该用哪个时态是"has/have been done"吗
来源：学生作业帮助网 编辑：作业帮 时间：2024/08/03 23:41:50
过去一直在不断的做某事,英语应该用哪个时态是"has/have been done"吗
过去一直在不断的做某事,英语应该用哪个时态
是"has/have been done"吗
过去一直在不断的做某事,英语应该用哪个时态是"has/have been done"吗
过去到现在为止一直在做某个事情：
have been doing sth
过去到过去某个时间为止一直在做某个事情：
had been doing sth
你所说的has/have been done是指该工作到现在为止已经完成
has/have been doing
是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done ...
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是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done 是的has/have been done v
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过去进行时. was/ were doing
was/were doing
过去进行时
完成进行时have been doing
过去进行时
have been doing
be used to do something