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为什么第一个weigh中没有s ,而第二个中却有s ?

teacher

母语人士的回答

Rebecca

这是个好问题。它可以分为两种,首先she can't weigh less than me , or look like she weighs less than me 。但是, can't和cannot must 出现在动词之前,它必须是原始形式。所以can't在第weigh例子: She can't swim. (她不会游泳。) 例如: He can't run. (他不会运行)。在另一方面,第二weigh的辅助can't没有look like ,和形式的组合,也给第三人称单数h e或she的weighs就没有写的字。示例: She weighs 100 pounds. (她重约 45 公斤。) 示例: He weighs less than 200 pounds. (他的体重不到 90 公斤。)

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04/27

通过测验完成表达式!