I helped my mum clean the rooms.为什么help用过去式clean却不用呢?
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Ihelpedmymumcleantherooms.为什么help用过去式clean却不用呢?Ihelpedmymumcleantherooms.为什么help用过去式clean却不用呢?Ihelpe
I helped my mum clean the rooms.为什么help用过去式clean却不用呢?
I helped my mum clean the rooms.为什么help用过去式clean却不用呢?
I helped my mum clean the rooms.为什么help用过去式clean却不用呢?
首先helped是因为这个帮助是发生在过去,用过去时
而help sb do sth 是个固定句型,表示帮助某人做某事
所以后面clean用动词的原型
help sb (to)do sth固定用法,不定式做宾补是不随谓语变化的
这句话里help是谓语动词,时态在谓语动词上反映。
若不理解,记住help sb to sth 帮助某人做某事就好。
因为help sb do sth
忙帮打扫卫生说的过去的事所以用过去式,help sb dosth,是固定搭配,即help后要加动词原形,与时态没有关系。
完整应该是help sb to do sth 这里的to 通常可以省略。。所以不定式后的动词当然保留原形了
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I helped my mum clean the rooms.为什么help用过去式clean却不用呢?
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