Let's first see some examples of Future Perfect Continuous Tense.
They will have been playing for two hours by 6 O'clock.
He will have been working in this office for four years by the next month.
Tom will have been living in this house for five years by the year 2017.
|Type of Sentence||Structure||Example|
|Affermative||Subject + will/shall + have been + V-I(-ing) + Object.||I shall have been playing cricket.|
They will have been working.
|Negative||Subject + will/shall + not + have been + V-I(-ing) + Object + since/for + ...||I shall not have been playing cricket.|
They will not have been working.
|Interrogative||Will/shall + subject + have been + V-I(-ing) + Object ?||Shall I have been playing cricket?|
Will they have been working?
|Interrogative-Negative||Will/shall + subject + not + have been + V-I(-ing) + Object ?||Shall I not have been playing cricket?|
Will they not have been working?
- With Shall and will we use have been and not has been.
- This tense is not very common.
When we use Future Perfect Continuous Tense ?
- Used to talk about actions which will be in progress over a period of time that will end in the future.
I shall have written my exercise by then.
He will have left before you go to see him.