can的否定形式是cannot。cannot的例句Even if we cannot agree,we should maintain our contact(即使我们不能取得一致,我们也要保持联系)。
cannot的例句They cannot leave the country without permission(他们不能擅自离开该国家);I cannot conceive of such a thing happening again(我不能想像这种事会再发生)。
水利万物而不争,
而万物莫能与之争。