he does not swim 这句话对吗？
He does not swim他不会游泳这句英语表述是正确的。
谓语动词前的not在只有谓语（即谓语后边无其他成分）时，否定谓语本身；但谓语后面带有宾语、宾补、状语、定语时，就不是否定谓语本身，而是否定句子最后的一个成分（定语例外）：
谓语中not否定谓语
He does not swim.他不会游泳。
谓语中not否定宾语
They do not speak English.他们不会讲英语。
She will not give up French.她不会放弃法语。
谓语中not否定宾语
My sister did not ask her to help me.我姐姐没叫她帮助我。
谓语中not否定状语
Jane did not do it carelessly.珍妮并没有粗心地做事。
I can not do it in such a hurry.我不能如此匆忙地办事。
英文介绍游泳？
Swimming is an individual or team racing sport that requires the use of one's entire body to move through water. The sport takes place in pools or open water (e.g., in a sea or lake).
Normally, swimmers use their arms to pull water and legs to splash water.
