The Future Perfect Continuous Tense is formed by combining ‘will / shall have been’ with a present participle.
will / shall have been + Present Participle = Future Perfect Continuous Tense
Examples:
will have been + watching = will have been watching
shall have been + reading = shall have been reading
We use the future perfect continuous tense to talk about how long an action will be going on at a future time.
Examples:
By next year, we will/shall have been living here for eight years.
Lindsay will have been playing the piano for 2 hours in 15 minutes.
By 5 o’clock, my parents will have been shopping for 3 hours.
Vicky will have been living in the U.S. for a decade in a month.
I will/shall have been knitting for an hour in 10 minutes.
By next month, Walter will have been working as a doctor for 5 years.
A. Fill in the blanks with the future perfect continuous tense of the verbs in brackets.
1. Grandma ____________ (sew) for one hour by 3 o’clock.
2. When the sun sets, Clark ____________ (fish) by the river for about three hours.
3. My son ____________ (study) in the university for three years by next month.
4. In ten minutes, Tara ____________ (talk) over the phone for an hour.
5. By the end of next week, I ____________ (work) here for three months.
6. The brothers ____________ (play) computer games for 2 hours when their father comes home.
7. In a few minutes, the gardener ____________ (rake) leaves in the garden for half an hour.
8. We ____________ (hear) the concert for an hour by half past eight.
B. Rewrite the following sentences, using the future perfect continuous tense of the verbs in brackets.
1. By the time dinner is ready, Heidi (revise) History for three hours.
2. Eddie and Alex (walk) for two miles by the time they reach the gas station.
3. When the library closes, we (read) for two hours.
4. The climbers (climb) the mountain for the whole day by the time the sun sets.
5. By 4 p.m., the surgeons (operate) on the patient for four hours.
6. My daughter (teach) in the kindergarten for five years by next month.
7. In half an hour, it (rain) continuously for three hours.
8. Miss Williams (type) for half an hour by the time the clock chimes midday.
A.
1. will have been sewing
2. will have been fishing
3. will have been studying
4. will have been talking
5. will/shall have been working
6. will have been playing
7. will have been raking
8. will/shall have been hearing
B.
1. By the time dinner is ready, Heidi will have been revising History for three hours.
2. Eddie and Alex will have been walking for two miles by the time they reach the gas station.
3. When the library closes, we will/shall have been reading for two hours.
4. The climbers will have been climbing the mountain for the whole day by the time the sun sets.
5. By 4 p.m., the surgeons will have been operating on the patient for four hours.
6. My daughter will have been teaching in the kindergarten for five years by next month.
7. In half an hour, it will have been raining continuously for three hours.
8. Miss Williams will have been typing for half an hour by the time the clock chimes midday.