將來完成進行時

將來完成進行時用來表示一個動作到將來某個時間點的持續(xù)時間。這種時態(tài)在英語中不常用。

這種時態(tài)常與下列時間短語連用:

... by / ... by the time ...

基本結構

肯定的

Subject + will + have + been + verb + ing + object(s) + time Expression

主語+ will + have + been +動詞+ ing +賓語(s) +時間表達

We will have been studying for two hours by the time he arrives.

否定的

Subject + will not (won't) + have + been + verb + ing + object(s) + time Expression

主語+ will not (won't) + have + been +動詞+ ing +賓語(s) + time Expression

He won't have been working long by two o'clock.

問答

(Question Word) + will + subject + have + been + verb + ing + object(s) + time Expression

(疑問詞)+ will +主語+ have + been +動詞+ ing +賓語(s) +時間表達

How long will you have been working on that project by the time he arrives?

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