The future perfect progressive form of a verb is used to show that an action is currently happening till the point of another action.it consists of will + have + been + present participle (ing).
while the future perfect explains actions that will have been completed before some other action in the future.
It consists of will have + [past participle].
Completing the sentence we have,
2. We will have been riding on this bus for over 15 hours
3.It will already have landed.
4. In 15 more minutes, we will have been listening to him
5. i will have drank four cups of coffee
6.By the time we get to New Zealand, we will have been flying for 13 hours.
7. By the end of this year, He will have saved enough
8. By the end of this semester, she will have been teaching more than 3000 students from different countries.
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