ever since后什么时候接一般过去时什么时候接过去完成时

ever since后什么时候接一般过去时什么时候接过去完成时 ever sinceever since后什么时候用过去完成时,什么时候用现在完成时 since后面什么时候跟完成时态,什么时候用过去时态? ever since ever since,ever after it is/has been+时间段+since since后面接完成时还是一般过去?求例子详解!拜谢~ ever since/since 的用法在书上看到的“ever since/since所引导的句子多用过去或现在完成时”能举例说说吗?请举例 ever since 和since 有什么区别Mr li went to America 20 years ago and has bee there ever since.后面为什么是ever since?不是ever since要和现在完成时连用吗?这里怎么会是过去时态啊? 翻译：ever since then ever since then EVER SINCE THE WORLD EVER SINCE EVE怎么样 Dose he ever eat steak?He ate some last Friday evening.为什么换为一般过去时时要在动词后加some?如题! should + V 还是 过去将来时John promised his doctor he ______ not smoke.And he has never smoked ever since.这道题为什么选would ,不选 should 不是说 promise 后的宾语从句用should + V 有一个句子：Ever since middle school, my sister Wang Wei and I have dreamed about taking a great bike trip.这个句子中,ever since 后加一个名词 ,问：ever since 后可以加一个句子吗? 什么时候用现在进行时?什么时候用过去时?ever和never,alreay和yet怎么区分? ever后接什么词? ever since 的用法ever since 和什么时态连用?