do some reading 的过去式是什么?

来源：学生作业学帮网 编辑：学帮网 时间：2024/06/03 19:34:52

do some reading 的过去式是什么?

did some reading
reading是动名词,动名词属于名词,不可能再有过去时.

did some reading

do——did some——无 read——read原型

did some reading