Future Perfect Continuous Tense is one of the 4 sub-tenses of Future Tense. Future Perfect Continuous tense refers to those actions/happenings which is assumed to start in future and will continue for a certain time in the future. This tense is constructed by using “Will” + “Have” + “Been” + “present participle of the verb i.e. -ing form of the verb”.
The structures of the Future Perfect Continuous Tense with examples are as follows:
1. Sub + shall/will + have been + v4 + obj. (Affirmative i.e. Positive Sentence)
For Example:
- He will have been waiting for his mother.
- I will have been working for children.
2. Sub + shall/will + not + have been + v4 + obj. (Negative Sentence)
For Example:
- He will not have been waiting for his mother.
- I will not have been working for children.
3. Shall/Will + sub + have been + v4 + obj? (Positive Interrogative )
For Example:
- Will he have been waiting for his mother?
- Will I have been working for children?
4. Shall/will + sub + not + have been + v4 + obj? (Negative Interrogative)
For Example:
- Will he not have been waiting for his mother?
- Will I not have been working for children?
5. Wh-word + shall/will + sub + have been + v4 + obj? (Wh- Question)
For Example:
- Where will he have been waiting for his mother?
- Whom will I have been working for?
Where Future Perfect Continuous Tense is used?
Future Perfect Continuous Tense is used to state actions/events which will progress for a certain time period in the future. We can say that guesses can be made using Future Perfect Continuous Tense.
- Before spring season arrives, we will have been decorating our house for baby.
- By next year, my boyfriend will have been playing flute in the music festival.
- By the next year, my sister will have been living abroad for 12 years.
- Before next Monday, Sandy will have been meditating for five days.
- By August, I will have been writing more than 500 articles.
Future Perfect Continuous tense is used to express certain effect of actions/events which will take place in future.
- Next year by this time, I will be enjoying life as I will have been studying in Canada to pursue my higher studies.
- By this time, he will be growing confident because he will have been training in camp.
- We will be making faces in an hour, because they will have been making a fuss over small things.
- By next week, we will be feeling relaxed because our exams will have been ending.