型态
将来完成式是由两个要素组成：
动词 to have 的一般将来式 (will have) 主要动词的过去分词
| 主词 | will have | 主要动词的过去分词 |
|---|---|---|
| he | will have | finished. |
| i | will have | finished. |
将来完成时，以 to arrive 为例
| 肯定句 | 否定句 | 疑问句 | 否定疑问句 |
|---|---|---|---|
| i will have arrived | i won't have arrived | will i have arrived? | won't i have arrived? |
| you will have arrived | you won't have arrived | will you have arrived? | won't you have arrived? |
| he will have arrived | he won't have arrived | will he have arrived? | won't he have arrived? |
| we will have arrived | we won't have arrived | will we have arrived? | won't we have arrived? |
| they will have arrived | they won't have arrived | will they have arrived? | won't they have arrived? |
作用
将来完成进行时涉及未来未完成的动作。当使用这个时态时，我们对未来会有所期望，并且反观在未来某时间会完成的动作。大部分常与时间词一起使用。
举例
- i will have been here for six months on june 23rd.
- by the time you read this i will have left.
- you will have finished your report by this time next week.
- won't they have arrived by 5:00?
- will you have eaten when i pick you up?