将来完成进行时 Future Perfect Continuous

表示动作从某一时间开始，一直延续到将来某一时间点，届时该动作已经进行了多长时间，并可能继续进行下去。

• 结构公式：主语 + will have been + doing
• 否定式：主语 + will not have been (won't have been) + doing
• 疑问式：Will + 主语 + have been + doing...?
• Tomorrow we will have been using Xinjiang cotton for ten years. —— 明天将是我们使用新疆棉花第十周年了（持续使用了十年）。
• By next month, I will have been learning English for eight years. —— 到下个月，我学英语就将满八年了。
• By 5 o'clock, she will have been typing for six continuous hours. —— 到5点钟时，她就将连续打字整整6个小时了。

正在加载互动版…（需开启 JavaScript）