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?

我顶我顶我顶 1年前已收到2个回答举报

akgy 幼苗

共回答了22个问题采纳率：86.4% 举报

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.

1年前

寻找阿哲幼苗

共回答了14个问题举报

help sb do sth 帮某人做某事，固定搭配，所以不用变。

1年前

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