have not come yet 与have not seen 区别
问题描述：
have not come yet 与have not seen 区别
Is Sonia here?No,she has not come yet 此句中come为原型
where is Julia?I have not seen her.此句中则用了see的现在完成式
答
Come ,came,come ,come 的过去分词就是它的原型.