ever since 是一个词组吗?

ever since 是一个词组吗? ever since和since ever的区别网上有一种解释说ever since的意思是从那时到现在,since ever的意思是其后、从此一直,我个人认为这两种解释是一个意思 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? since ever 和 since then 有区别吗字面上意思是一样的一个是在那之后,一个是从那时起 和ever since同个意思的有哪些词组? ever since Have you ever seen a rainbow?Have you 是一个词组吗,Have you ever seen a rainbow?Have you 是固定的吗 ever since,ever after 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? ever since的意思,与since有区别吗 Ever since放句首和放句末一样吗 never until,only before,ever since这些词组是什么意思,请翻译一下, I will never ever do that again 这句句子中,为什么 never ever可以连用,是词组吗. ever since可以直接等于since吗We have lived in Shanghai ever since we came to China .（可以把every since换成since吗） 翻译：ever since then ever since then EVER SINCE THE WORLD EVER SINCE EVE怎么样