What Is Future Perfect Continuous?
The future perfect continuous tense and the future perfect tense are two tenses that are used to talk about the past in the future.
I will have been running for an hour when you arrive. →
I have been waiting for an hour. → I will
We can use the future perfect continuous tense to talk about 'how long' an action continues up to another point in the future. The second point can be a time or another action.
In December, I