I have met him often since I have lived here.这句话对吗?不是现在完成时中s

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/05/16 14:56:07

I have met him often since I have lived here.这句话对吗?不是现在完成时中since+从句用一般过去时呀?
在现在完成时中,since后的从句到底用什么时态?这儿还有一句：I have learned a lot from him since I have known him.这句话对吗?这句话since后怎么也是现在完成时呀?不是since+从句（从句用一般过去时）呀?我英语水平不是很好,

I have met him often since I have lived here 这上面的应该是网络翻译意思是：自从我在这里住下之后,我常看见他如果就时态来说的话就不对：I have met him often since I lived here.自从我在这里住下之后,我常看见他具体的你就问一下你们的老师……我可能帮不了你了 since的四种用法 1） since +过去一个时间点（如具体的年、月、日期、钟点、1980,last month,half past six）.例如：I have been here since 1989.1989起,我一直在这儿.2） since +一段时间+ ago.例如：I have been here since five months ago.我在这儿,已经有五个月了.3） since +从句.例如：Great changes have taken place since you left.你走后,变化可大了.Great changes have taken place since we were here.我们走后,变化可大了.4） It is +一段时间+ since从句.例如：It is two years since I became a postgraduate student.我考上研究生有两年了.

I have met him often since I have lived here.这句话对吗?不是现在完成时中s I met him,whom from a country I have never been to.这句话对吗? 在英语现在完成式中 i have lived here since my childhood.i have been i 有since,for的现在完成时句子中的动词必须是延续性的吗?如I have lived here since then I have lived here since then还是I have been here since then对啊? 英语翻译He has been to Beijing since 2007.I have lived in here s I have been up since two hours ago.为什么这句话是对的?现在完成时不是不能跟过 It is 5 years since I have lived here.It is 5 years since I i have known him since he came here it's real a good chance to have met all of you here.这句话对吗 I have been here since 1976 这里的have 是实意动词吗?那么在现在完成时中是不是没有助动词 I have been here since I was born 和I haden't seen him since