将来完成时的分类有哪些
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将来完成时:
![将来完成时的分类有哪些 将来完成时的分类有哪些](https://i2.yyxkb.com/131b9ea15ce070/5644d1/131a89b451/5644d1f509b630.jpg)
1.构成:shall / will have + 过去分词
2.功能:表示将来某时之前已经完成的动作。
→They will have been here for 5 years next Friday.
→By the end of next term, the students will have finished the book.
过去将来完成时:
1.构成:would / should have + 过去分词
2.功能:表示从过去某个时间看将来某时之前已经完成的动作。
→He said that they would have arrived by seven o'clock.
将来完成进行时:
1.构成:shall / will have been + 现在分词
2.功能:表示某一动作将继续到将来某时,且该动作此时尚未发生。
→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:此句型过于复杂,人们很少运用,了解而已。