请问：we should do everything we can to protect the environment

请问：we should do everything we can to protect the environment中can情态动词为什么后面还加to?
原句可不可以改为：we should do everything and can to protect the environment?这句话是不是从句?

siefgk 1年前已收到3个回答举报

abis0605 春芽

共回答了22个问题采纳率：86.4% 举报

不知道我这样改句子对不对?we should do everything what we can to protect the enviroment .
我们应当做一些我们能做的事情去保护环境,这里的can不是做情态动词用的吧,而是做宾语吧,结构是不是疑问代词+主语+宾语+动词不定式

1年前

红叶奇石幼苗

共回答了14个问题采纳率：85.7% 举报

不是,从句有引导词如1中省略的that

1年前

syc19870519 春芽

共回答了12个问题采纳率：83.3% 举报

everything we can (do) to protect

这里的can这里意思已经断开, can后面跟的是前面的do.之后才是表目的的to

--手工劳动,满意请采纳,谢谢--

1年前

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你能帮帮他们吗

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