Future Perfect

The future perfect tense is an advanced tense; it will allow you to speak about the future in a really interesting way that may not exist in your own language.

What Is Future Perfect Tense?

The future perfect tense is used to talk about an action that will be completed before a specific future time or event. It refers to the future from a perspective in the future, indicating that the action will have been completed by that time.

Future Perfect: Structure

The future perfect is composed of the auxiliary verb 'will,' followed by the auxiliary verb 'have' and the past participle of the main verb.

Subject	All subjects
Auxiliary Verb	will
Auxiliary Verb	have
Past Participle of Main Verb	walked

When we use the present perfect tense in speaking, we often contract the subject and auxiliary verb 'will.' Check out these examples:

She will have finished her homework by six o'clock. → She'll have finished her homework by six o'clock.

We will have been in this house for a year on February 2nd. → We'll have been in this house for a year on February 2nd.

Future Perfect: Negation

For negative sentences you put 'not' between the auxiliary verb 'will and the auxiliary verb 'have.' Look at the examples:

She will have gone to college. → She will not have gone to college.

They will have arrived. → They will not have arrived.

In negative sentences, we can contract the auxiliary verb 'will' and 'not.' See the examples:

They will not have had their lunch by then. → They won't have had their lunch by then.

They will not have arrived. → They won't have arrived.

Future Perfect: Questions

For yes/no question sentences, we invert the subject and 'will.' Look at these example sentences with the future perfect tense:

They will have arrived. → Will they have arrived?

You will have sent it. → Will you have sent it?

For wh- question sentences, do the same thing you do for yes/no questions and add the proper wh- question word at the beginning of the sentence and omit the part that is the answer.For example:

They will have sent the letter. → What will they have sent?

Tip!

If you want to learn more about spelling rules for adding -ed to the base form of verbs, see here.

Using Future Perfect to Talk about Completed Actions before Another Events

Future Perfect: Use

When someone uses the future perfect tense, they are talking about:

Ongoing Actions That Will Continue up until Some Time in the Future

Ongoing Actions That Will Continue up until Some Time in the Future

We use the 'future perfect tense' to talk about an action that will be completed before a certain time in the future, but we do not know the exact timing. So, there is not a specific time for the particular action to finish. Check out the examples:

By midnight, I will have finished my report.

It means the speaker will finish his report some time before midnight, but we do not know the exact time.

You can call me at my office at 10:00. I will have arrived at the office by 10:00.

It means the speaker will arrive at the office before 10, but we do not know the exact time.

We use the 'future perfect tense' to indicate the duration of an action that starts before and continues up to another action or time in the future. Here are the examples:

When they get married, she'll have known her husband for two years.

At 6:00, I'll have been in the office for a whole day.

We use the 'future perfect tense' to talk about an action that will be completed before another event takes place. It means you can consider an event as the deadline for future action. For example:

We will have cooked the dinner before they arrive.

Sam will have finished his class before we leave for the party.

Review

Future perfect tense, as its name requires; talks about an action in the future that is formed in the perfect tense, so if you are familiar with the perfect structure of English grammar it is easy for you to make a sentence in the 'future perfect tense.'

Structure, Contraction, Affirmative, Negative, and Question Forms

structure	subject + will + have + past participle
affirmative	I will have had lunch by 5:00.
negative	I will not have had lunch by 5:00.
contraction	I'll not have had lunch by 5:00./ I won't have had lunch by 5:00.
yes/no question	Will you have had lunch by 5:00?
-wh question	When will you have had lunch?

When to Use Future Perfect Tense

To talk about an action that will finish before a certain time in the future
To talk about an action that starts before and continues in the future

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What Is Future Perfect Tense?
- Future Perfect: Negation
- Future Perfect: Questions
- Ongoing Actions That Will Continue up until Some Time in the Future
- Structure, Contraction, Affirmative, Negative, and Question Forms
- When to Use Future Perfect Tense

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