英语语法时态中的“过去将来时”怎么解释,怎么又过去又将来?答:2.时间状语:yet,already,just,never,ever,so far,by now,since+时间点,for+时间段,recently, lately, in the past few years, etc. 3.基本结构:have/has + done 4.否定形式:have/has + not +done. 5.一般疑问句:have或has。 6.例句:I've written an article. The countryside has...