初中英语时态的标志词都有什么,帮忙多写一些,谢谢答:现在进行时:listen look right now, while,now, these days ,at the moment 过去进行时:at that moment, at this time of yesterday, at eight last night.过去完成时:by the year xxxx,since, before, after, when, as soon as,till, by 现在完成时:already(肯定), yet(否定,...