Future Perfect Continuous - Tenses, English Grammar Basics | General Aptitude for GATE - Mechanical Engineering PDF Download

The future perfect continuous, also sometimes called the future perfect progressive, is a verb tense that describes actions that will continue up until a point in the future. The future perfect continuous consists of will + have + been + the verb’s present participle (verb root + -ing).

When we describe an action in the future perfect continuous tense, we are projecting ourselves forward in time and looking back at the duration of that activity. The activity will have begun sometime in the past, present, or in the future, and is expected to continue in the future.

Example - In November, I will have been working at my company for three years.

Example - At five o’clock, I will have been waiting for thirty minutes.

Example - When I turn thirty, I will have been playing piano for twenty-one years.

Nonaction Verbs Do Not Use the Future Perfect Continuous

Remember that nonaction verbs like to be, to seem, or to know are not suited to the future perfect continuous tense. Instead, these verbs take the future perfect tense, which is formed with will + have + past participle.

Incorrect - On Thursday, I will have been knowing you for a week.

Correct - On Thursday, I will have known you for a week.

Incorrect - I will have been reading forty-five books by Christmas.

Correct - I will have read forty-five books by Christmas.

More Examples to understand Future Perfect Continuous Tenses:

1) Simple / Affirmative

Simple or Affirmative sentences are those in which we don't deny or ask question means they are totally simple

Structure of Simple:

Sub + Will Have / Shall have + Been + Ving + object 

Subject = Means Who or what perform the action

Verb = A word which is used to indicate the act is called verb

Object = It gives us the full meaning of a sentence

Will Have Been / Shall Have Been = Helping Verbs

Examples:

- I will have been living

- You will have been living

- He will have been living

- We will have been living

- They will have been living

2) Negative / Say No

We use Negative when we are not agree or deny Not – The word not is very important for denying

Formula of Negative:

Sub + Will + not + have + Been + Ving + object

Subject = Means Who or what perform the action

Verb = A word which is used to indicate the act is called verb

Object = Object is noun or pronoun and tell the meaning of preposition 

Not = By the word we can understand the word "Not" is for when not agree 

Will Have / Shall Have = Helping Verbs

Examples:

- I won't have been living

- You won't have been living

- He won't have been living

- We won't have been living

- They won't have been living

3) Interrogative

We use Interrogative for asking question and to do this we put the helping verb which is (did) at first and at the end put the question mark? 

Formula of Interrogative: 

Will + Sub + Have + Been + Ving + object? 

Subject = Means Who or what perform the action 

Verb = A word which is used to indicate the act is called verb 

Object = Object is noun or pronoun and tell the meaning of preposition 

Will Have / Shall Have = Helping Verbs 

Question Mark? = We put question mark? at the end of every Interrogative sentence so that it looks like it is Question

Examples:

- Will I have been living?

- Will you have been living?

- Will he have been living?

- Will we have been living?

- Will they have been living?

4) Negative Interrogative

Negative Interrogative is the combination of two structures first Interrogative Second Negative we use it when we want to ask both at the same time 

Formula of Negative Interrogative-

Negative: Will + Sub + not + Have + Been + Ving + object? 

Subject = Means Who or what perform the action 

Verb = A word which is used to indicate the act is called verb 

Object = Object is noun or pronoun and tell the meaning of preposition 

Will Have / Shall Have = Helping Verbs 

Question Mark? = We put question mark? at the end of every Interrogative sentence so that it looks like it is Question

Examples:

- Won't I have been living?

- Won't you have been living?

- Won't he have been living?

- Won't we have been living?

- Won't they have been living?