作业帮动词过去式后的动词怎么弄?如：I helped him clean the room,为什么clean不用变?
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/11 02:49:24
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动词过去式后的动词怎么弄?如：I helped him clean the room,为什么clean不用变?
动词过去式后的动词怎么弄?如：I helped him clean the room,为什么clean不用变?
动词过去式后的动词怎么弄?如：I helped him clean the room,为什么clean不用变?
这是help 的固定用法,help sb do sth或help sb to do sth.
在宾语从句中才要变.e.g.:He said that he cleaned the room.
help sb do sth 帮某人做某事，固定搭配，所以不用变。