VOA一分鐘英語：將來完成進行時 用法是什么？

“到這期視頻的第二幕時，主持人 Tom 將已連著吃了五分鐘的面條。” 如果想用英語來描述前面這句話，應使用表示動作持續(xù)到將來某個時間點的將來完成進行時（future perfect continuous tense）。你知道這句話的正確英語說法嗎？怎樣把這個時態(tài)中的肯定句變成否定句？
 
Hi! I’m Tom, and today I’m going to show you how to use the future perfect continuous.
When we use the future perfect continuous, we imagine ourselves at a point in the future. And, we then talk about a continuing action which leads to this point.
Let’s practise.
At the start of the next scene, I will have been eating noodles for five minutes.
See? It’s nearly finished.
We make this tense using subject, will have been, plus verb-ING.
For example: At lunchtime, I will have been working for four hours.
And we can also use ‘won’t’ to make the tense negative.
 
用法總結
1 將來完成進行時的用法：想像未來的某個時間點，并談論一直到該時間點仍在持續(xù)進行的動作。 
At the start of the next scene, I will have been eating noodles for five minutes.
By this Thursday, he will have been waiting for this parcel for 20 days.
 
2 將來完成進行時的基本結構：主語 + will have been + 動詞-ing。可以把其中的 “will” 改為 “won’t” 來組成將來完成進行時的否定句。 
At lunchtime, I will have been working for four hours.
My colleagues are getting a pay rise next week, but I won’t have been working here for long enough to receive it.