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Future Perfect Continuous Tense

What is the future perfect continuous tense? How do we use future perfect continuous tense? How to use future perfect continuous tense?

The Future Perfect Continuous Tense


1) We use the future perfect continuous when we describe an action (quite a long one) that has begun sometime in the past, present, or future, and is expected to continue in the future. In this case, we are projecting ourselves forward in time and looking back at the duration of that action.

When Peter turns 40, he will have been painting for 35 years.

2) The future perfect continuous is formed using will + have + been + present participle. Questions are indicated by inverting the subject and will. Negatives are made with not. Contracted forms are used.

(+) At 6 o’clock I will have been waiting here for an hour./At that time I’ll have been waiting here for an hour.
(-) I won’t have been waiting here for an hour at 6 o’clock.
(?) Will I have been waiting here for an hour at 6 o’clock?

We often use by + time expression with the future perfect continuous to show that the situation has begun sometime in the past, present, or future, and is expected to continue in the future.

By 2025 he’ll have been living in London for 10 years.

We can also use when, as soon as, before, or by the time to show the sequence of events. In this case, use the present simple tense in the parts with when, by the time etc.

When I complete my studies, I’ll have been learning English for 17 years.

Remember that non-continuous verbs (e.g. to love, hate, know, want etc.) are not used in any continuous tenses. Use the future perfect instead.

In March I’ll have been knowing you for a year. In March I’ll have known you for a year.

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