1.概念：表示從過去某時(shí)看至未來某時(shí)以前會(huì)一直在進(jìn)行的動(dòng)作。
2.基本結(jié)構(gòu)：should/would + have + been +現(xiàn)在分詞
3.例子：He told me that by the end of the year he would have been living there for thirty years.
他告訴我，到年底時(shí)，他就在那住了30年了。
2.基本結(jié)構(gòu)：should/would + have + been +現(xiàn)在分詞
3.例子：He told me that by the end of the year he would have been living there for thirty years.
他告訴我，到年底時(shí)，他就在那住了30年了。