examples: "I do not agree with him, yet he argued well." = "I do not agree with him, but in spite of that, he argued well." "I will not go yet, but I will go later." = "I will not go at this time, but will later." "And yet, there is still something I like about it." = "I do not like everything about it, but despite that, I still like some things."

这是非常难回答的问题。因为不知道你了解多少关于yet。单纯的说用在否定和疑问句，并且放在结尾。这样对你来说太空洞了！你还是不会使用。说常见的用在present perfect 句子中吧，你还会产生疑问，因为它还可以用在其它时态中。最简单的办法就是，根据你自己理解，写点sentence，即使错误了，回答者也知道你在什么地方出现的问题，才可以解答，只有这样才能提升你英语水平。漫无目的的说怎么用，让人真的不知道怎么回答你，就像楼上的说得，你可能明白了，或许更糊涂了。

In a sentence!