1.He was always making diagrams of verbs and their inflections, and he looked for opportunities to show off his mastery of the pluperfect and future perfect tenses, his two favorites.
12.Sure, imagine you're planning a surprise party for your friend, the future perfect tense is like a time traveler that jumps into the future and looks back at the past from that future point.
13.That's a confident prediction about what will be achieved by a specific point in the future, a point at which they will have been voyaging for three weeks in the future perfect progressive.
14.So, the way we form the future perfect is we're going to use subject with " will" , so future we use " will" all the time, " have" , and then the past participle.
15.And, again, you can do this with present perfect: " I have gotten a bad grade." , " I have received" , and you can also use it with the future perfect forms as well.
而且,同样,你可以用现完成时来做这一点:“我的成绩很差。 ” , " I have received" , 你也可以将它与将来的完美形式一起使用。机翻