Future Perfect Continuous – Form

To form sentences in the future perfect continuous we use “will have been” plus the “-ing” form of the main verb.

Positive sentences:
By 2028 I will have been living here for 30 years.
Jim will have been driving for 4 hours when he gets to Berlin.
Before she comes we will have been waiting for her for one hour.

Negative Sentences:
By 2028 I will not have been living here for 30 years.
Jim won’t have been driving for 4 hours when he gets to Berlin.
Before she comes we won’t have been waiting for her for one hour.

Questions:
Will you have been living here for 30 years by 2028?
How long will Jim have been driving when he gets to Berlin?
Will we have been waiting for her for one hour when she comes?