she helps her sister to get dressed every day 中为什么get不加s

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she helps her sister to get dressed every day 中为什么get不加s

she helps her sister to get dressed every day 中为什么get不加s
she helps her sister to get dressed every day 中为什么get不加s

she helps her sister to get dressed every day 中为什么get不加s
因为 to get 是动词不定式.、
to +动词原形 构成 动词不定式
本句的第三人称单数 是helps .

help sb to do sth 标准格式

这里的to do 属于不定式,to 后面必须跟动词原形,因此get 不加s

help sb. to do sth.

因为句型help sb to do sth(帮助某人做某事)中的to为动词不定式,而动词不定式后一般接动词原形,所以直接用get,且在此句型中to后接的是do,所以将这个句型套到这题中to后就应该接get了

祝你开心
望采纳谢谢

因为有 To ~~help sb. to do sth.

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