Future Perfect Progressive
1. Use of the Future Perfect Progressive
sth. that will have already begun and will be continuing in the future
2. Form
will + have + been + infinitive + ing
3. Example
I will have been swimming for an hour by 6.30.
sth. that will have already begun and will be continuing in the future
will + have + been + infinitive + ing
I will have been swimming for an hour by 6.30.