可以。只是意思就有些不同了！！！下面是since的所有用法1) since +过去一个时间点0(如具体的年、月、日期、钟点、1980, last month, half past six)。0 I have been here since 1989.0 0 2) since +一段时间+ ago0 I have been here since five months ago.0 3) since +从句00 Great changes have taken place since you left.0 Considerable time has elapsed since we have...
这种用法比较少见，一般情况下都是接一般过去时的。我个人觉得应该是不可以用现在完成时的，毕竟since是翻译成“自从。。。以来”的。下面的材料是我从网上找来的关于since的用法，貌似是某位老师的教案呢。希望能帮到你。since的用法：译作“自从…以来”
(1)接时间点：如 I have stayed in that country since...
