Future Perfect Continuous

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"Future Perfect Continuous" Tense in English Grammar

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.

Structure

We form the future perfect continuous tense with the help of three auxiliary verbs and the '-ing' form of the main verb.

will + have + been + present participle

Aux #1	Aux #2	Aux #3	ing form of the main verb
will	have	been	waiting

If we invert the subject and will, we can make questions.
Negations are made with the help of 'not' placed between 'will' and 'have.'

I will have been running for an hour when you arrive. → Will you have been waiting for an hour when I arrive?

I have been waiting for an hour. → I will not have been waiting for an hour.

Use

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 will have been working for ten years.

He will have been waiting for more than an hour when she finally gets promotion.

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What Is Future Perfect Continuous?
Structure
Use

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