將來完成時的用法如下: 1. 表示“將來完成” 即表示到將來某個時間爲(wèi)止勢必會完成或預(yù)計要完成的動作。如: When we get there, she'll have gone to work. 我們到那裡時她會已上班去了。 I expect you will have changed your mind by tomorrow. 我預(yù)料到明天你就會改變主意了。 2. 表示“持續(xù)” 即表示某種狀況將一直持續(xù)到說話人所提及的某一將來時間。如: We will have been married a year on June 25th. 到6月25日我們倆結(jié)婚就滿1年了。 By this time next week, I will have been working for this company for 24 years. 到下星期此刻,我就已經(jīng)爲(wèi)該公司乾了24年了。 3. 表示“推測 即表示根據(jù)某情況作出的推測。如: That will have been Roland. He said he'd be back at 7. 準(zhǔn)是羅蘭。他說他7點鍾廻來。 There will have been a definite result before Friday. 星期五以前肯定會有結(jié)果。