just ,yet,ever,even的区别!急

just ,yet,ever,even的区别!急 ever even yet 三个词的区别 详细一点举点例子 谢谢 ever与even的区别 even和ever的区别 not even和not yet的区别 ever never alreadly yet的区别 yet ever before的区别是什么? already yet still ever never 的区别 never,ever,already,yet,just 谈since,for,ever,already,yet,just,before的用法? already,yet,ever,never,before,just 区别 如题,附：我这是在一个现在完成时的卷子上. also even still yet again的区别是什么?