將來完成時的分類
將來完成時:
1.搆成:shall / will have + 過去分詞
2.功能:表示將來某時之前已經完成的動作。
→They will have been here for 5 years next Friday.
→By the end of next term, the students will have finished the book.
過去將來完成時:
1.搆成:would / should have + 過去分詞
2.功能:表示從過去某個時間看將來某時之前已經完成的動作。
→He said that they would have arrived by seven o'clock.
將來完成進行時:
1.搆成:shall / will have been + 現在分詞
2.功能:表示某一動作將繼續到將來某時,且該動作此時尚未發生。
→We shall have been staying here for four weeks when Tom arrives.
→It will have been raining for a week if it does not stop tomorrow.
[注:此句型過於複襍,人們很少運用,了解而已。]