آینده کامل استمراری: زمان مدت
Grammar Rule in 30 Seconds
Use this tense to emphasize how long an action will have been happening by a specific point in the future.
- Use 'will have been' + '-ing' for all subjects. Example: 'I will have been waiting.'
- Always include a time reference like 'by next week' or 'for three hours'.
- Avoid using stative verbs like 'know' or 'believe' in this continuous form.
مرور کلی
Future Perfect Continuous (آینده کامل مستمر) در زبان انگلیسی انجام میدهد.Future Perfect Continuous، بخش فعل (Verb Phrase) بسیار طولانی است و از چهار کلمه تشکیل میشود.- 1
will(لنگرگاه آینده): این فعل کمکی (Modal Verb)، نقطه مرجع ما را در آینده تثبیت میکند. این کلمه به شنونده میگوید که تمام این سناریو قرار است در آینده رخ دهد. دقیقاً مانند زمانی که در فارسی میگوییم «سال آینده» یا «فردا ساعت هشت».
- 1
have(جنبه کامل یا Perfect): حضورhaveدر اینجا نقش یک «پل زمانی» را بازی میکند. این کلمه، زمانِ قبل از نقطه مشخص شده در آینده را به خودِ آن نقطه متصل میکند. در واقع، به ما اجازه میدهد که از آن نقطه در آینده، به عقب نگاه کنیم.
- 1
been(پایه استمرار): این کلمه که شکل سوم (Past Participle) فعلbeاست، در کنارhaveساختار کامل (Perfect) را میسازد، اما وظیفه اصلیاش در اینجا این است که بستر را برای فعلing-دار فراهم کند تا نشان دهد عمل مورد نظر در یک حالت پیوسته و ادامهدار بوده است.
- 1فعل اصلی با
ing-(نشاندهنده جریان و پروسه): این بخش، هسته اصلی معنایی جمله است. پسوندing-نشان میدهد که ما با یک رویداد لحظهای و تمامشده روبرو نیستیم، بلکه با یک «پروسه» درگیر هستیم.
By next year, I will have been working here for a decade، شما از نظر ذهنی در «سال آینده» ایستادهاید (will)، به گذشته نگاه میکنید (have) و مسیر ده ساله و مستمر (been working) را میسنجید.will + have + been + Verb(-ing)By the time you arrive, I will have been waiting for two hours.
Next month, she will have been studying English for three years.
will را مخفف میکنند. این کار باعث میشود جمله روانتر تلفظ شود.I will->I'll(I'll have been...)She will->She'll(She'll have been...)They will->They'll(They'll have been...)
not را بعد از اولین فعل کمکی یعنی will قرار دهیم. معمولاً از فرم مخفف won't استفاده میشود.will not (won't) + have + been + Verb(-ing)By 2025, he won't have been living in Tehran for long.
We won't have been driving for more than an hour by the time we reach the villa.
will را عوض میکنیم.Will + Subject + have + been + Verb(-ing)?Will you have been working all night by the time the morning shift starts?
How long will they have been traveling by the time they arrive in London?
By the time I take the IELTS exam, I will have been studying for six months.
I will be exhausted on Friday evening because I will have been cleaning the house all day.
By the time he finally gets here, he will have been sitting in traffic for hours. He's going to be so annoyed!
- ❌ اشتباه:
Tomorrow at 5, I am waiting for three hours. - ❌ اشتباه:
Tomorrow at 5, I will wait for three hours. - ✅ درست:
Tomorrow at 5, I will have been waiting for three hours.
for three hours) به یک نقطه در آینده متصل میشود، حتماً باید از ساختارهای Perfect استفاده کنید.will have been V-ing بسیار طولانی است، ذهن فارسیزبان تمایل دارد آن را کوتاه کند و یکی از کلمات را جا بیندازد.- ❌ اشتباه:
She will been working here for a year.(حذفhave) - ❌ اشتباه:
She will have working here for a year.(حذفbeen) - ✅ درست:
She will have been working here for a year.
has برای سوم شخص مفرد:he یا she است، باید از has استفاده کنند. اما به یاد داشته باشید که بعد از افعال کمکی وجهی (Modals) مثل will، فعل همیشه به شکل ساده (Base form) میآید.- ❌ اشتباه:
By next week, Ali will has been studying for a month. - ✅ درست:
By next week, Ali will have been studying for a month.
know, love, believe, own, understand) افعالی هستند که یک حالت یا احساس را نشان میدهند، نه یک عمل فیزیکی و ادامهدار را. این افعال هیچگاه ing- نمیگیرند. بنابراین نمیتوانند در زمان Future Perfect Continuous استفاده شوند.Future Perfect Simple استفاده کنید.- ❌ اشتباه:
By next year, I will have been knowing my best friend for 10 years. - ✅ درست:
By next year, I will have known my best friend for 10 years.
will be + V-ing | تمرکز روی در جریان بودن یک عمل در یک لحظه دقیق در آینده است. (بدون اشاره به مدت زمان) | At 8 PM tomorrow, I will be watching a movie. (فردا ساعت ۸، در حال تماشای فیلم خواهم بود.) |will have + Past Participle (V3) | تمرکز روی تکمیل شدن و نتیجه یک عمل، قبل از یک زمان مشخص در آینده است. | By 8 PM tomorrow, I will have watched the movie. (تا ساعت ۸ فردا، فیلم را تماشا کردهام/تمام شده است.) |will have been + V-ing | تمرکز روی مدت زمان (طول دوره) و استمرار یک عمل تا یک نقطه مشخص در آینده است. | By 8 PM tomorrow, I will have been watching TV for three hours. (تا ساعت ۸ فردا، سه ساعت خواهد بود که در حال تماشای تلویزیون هستم.) |for two hours یا since morning وجود دارد و میخواهید به آینده اشاره کنید، زمانهای ساده و مستمر معمولی جوابگو نیستند و باید به سراغ خانواده Perfect بروید.By Friday, we'll have been working on this project for a month.will از be going to استفاده کنم؟am/is/are going to have been V-ing کاملاً درست است. اما در عمل، این ساختار به قدری طولانی و سنگین (Clunky) میشود که حتی بومیزبانها هم به ندرت از آن استفاده میکنند. توصیه میشود همیشه از همان will استفاده کنید تا کلامتان روانتر باشد.will have been being + Past Participle درمیآید که بینهایت پیچیده و غیرطبیعی است. در زبان انگلیسی مدرن، استفاده از حالت مجهول برای زمانهای Perfect Continuous به شدت منع میشود. اگر نیاز به بیان چنین مفهومی دارید، بهتر است جمله را به حالت معلوم (Active) برگردانید یا از زمان Future Perfect Simple مجهول استفاده کنید.for و since در این زمان چیست؟for برای نشان دادن «طول دوره» (مثل for 3 hours, for a month) و از since برای نشان دادن «مبدأ زمان» (مثل since morning, since 2020) استفاده میشود. با این تفاوت که در اینجا، این بازه زمانی در نهایت به یک نقطه در آینده ختم میشود.Conjugation of 'To Work' in Future Perfect Continuous
| Subject | Auxiliary | Perfect/Continuous | Main Verb (-ing) |
|---|---|---|---|
|
I
|
will
|
have been
|
working
|
|
You
|
will
|
have been
|
working
|
|
He/She/It
|
will
|
have been
|
working
|
|
We
|
will
|
have been
|
working
|
|
They
|
will
|
have been
|
working
|
Contractions and Short Forms
| Full Form | Contraction | Negative Contraction |
|---|---|---|
|
I will have been
|
I'll have been
|
I won't have been
|
|
You will have been
|
You'll have been
|
You won't have been
|
|
He will have been
|
He'll have been
|
He won't have been
|
|
We will have been
|
We'll have been
|
We won't have been
|
|
They will have been
|
They'll have been
|
They won't have been
|
Meanings
The Future Perfect Continuous describes an ongoing action that will continue up until a specific point in the future, focusing specifically on the duration or the process of that action.
Duration up to a future point
To show how long an activity has been in progress when a future deadline is reached.
“By the time the sun sets, we will have been hiking for eight hours straight.”
“In December, she will have been working at this firm for two decades.”
Cause of a future result
To explain the reason for a future state or feeling based on a continuous action.
“I'll be exhausted when I see you because I will have been traveling for 24 hours.”
“Their eyes will be tired because they will have been staring at screens all day.”
Projected certainty of duration
Expressing a strong conviction about the length of an ongoing future state.
“By then, they will have been dating long enough to get married.”
“I will have been practicing this piece so much that I'll know it by heart.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
S + will + have + been + V-ing
|
I will have been running.
|
|
Negative
|
S + will + not + have + been + V-ing
|
She won't have been studying.
|
|
Question
|
Will + S + have + been + V-ing?
|
Will they have been waiting?
|
|
Short Answer (+)
|
Yes, S + will.
|
Yes, I will.
|
|
Short Answer (-)
|
No, S + won't.
|
No, they won't.
|
|
Wh- Question
|
Wh- + will + S + have + been + V-ing?
|
How long will you have been driving?
|
طیف رسمیت
By the conclusion of this fiscal year, Mr. Smith will have been serving as Director for a decade. (Professional milestone)
By the end of the year, he will have been working as the Director for ten years. (Professional milestone)
He'll have been the boss for ten years by Christmas. (Professional milestone)
He's gonna have been running the show for ten years straight soon. (Professional milestone)
The Anatomy of the Future Perfect Continuous
Components
- Will Future marker
- Have Perfect marker
- Been Continuous marker
- Verb-ing Action
Time Markers
- By... The deadline
- For... The duration
Continuous vs. Perfect Continuous
مثالها بر اساس سطح
I will have been here for one hour.
I will have been here for one hour.
She will have been sleeping for a long time.
She will have been sleeping for a long time.
We will have been playing for ten minutes.
We will have been playing for ten minutes.
Will you have been waiting long?
Will you have been waiting long?
By 6 PM, I will have been working for eight hours.
By 6 PM, I will have been working for eight hours.
They will have been living here for a month soon.
They will have been living here for a month soon.
He won't have been studying for very long.
He won't have been studying for very long.
How long will she have been cooking by then?
How long will she have been cooking by then?
By the time the train arrives, we will have been standing here for forty minutes.
By the time the train arrives, we will have been standing here for forty minutes.
Next year, they will have been traveling around the world for six months.
Next year, they will have been traveling around the world for six months.
I will have been practicing the piano all day, so I'll be tired.
I will have been practicing the piano all day, so I'll be tired.
Will you have been staying at the hotel for a week by Friday?
Will you have been staying at the hotel for a week by Friday?
By the end of this semester, I will have been researching this topic for over a year.
By the end of this semester, I will have been researching this topic for over a year.
She will have been competing professionally for a decade by the time she retires.
She will have been competing professionally for a decade by the time she retires.
They won't have been dating long enough to make such a big decision.
They won't have been dating long enough to make such a big decision.
By tomorrow morning, it will have been snowing for twenty-four hours straight.
By tomorrow morning, it will have been snowing for twenty-four hours straight.
By the time the legislation passes, the committee will have been debating its merits for years.
By the time the legislation passes, the committee will have been debating its merits for years.
I'll be quite relieved when the project ends, as I will have been working under immense pressure.
I'll be quite relieved when the project ends, as I will have been working under immense pressure.
Will the scientists have been monitoring the volcano long enough to predict the eruption?
Will the scientists have been monitoring the volcano long enough to predict the eruption?
By the gala, the dancers will have been rehearsing this specific choreography for months.
By the gala, the dancers will have been rehearsing this specific choreography for months.
Upon his inauguration, he will have been campaigning tirelessly for the better part of two years.
Upon his inauguration, he will have been campaigning tirelessly for the better part of two years.
The ecosystem will have been recovering from the spill for decades before it reaches its former state.
The ecosystem will have been recovering from the spill for decades before it reaches its former state.
By the time the sun burns out, it will have been fusing hydrogen for billions of years.
By the time the sun burns out, it will have been fusing hydrogen for billions of years.
One wonders if they will have been cohabiting in such disharmony for long before they part ways.
One wonders if they will have been cohabiting in such disharmony for long before they part ways.
بهراحتی اشتباه گرفته میشود
Both tenses use 'will' and '-ing'. Learners often use Future Continuous when they should be measuring duration.
Learners struggle to choose between the result (Simple) and the process (Continuous).
The structures are similar (have been -ing).
اشتباهات رایج
I will have working.
I will have been working.
I will been working.
I will have been working.
I will have been work.
I will have been working.
By tomorrow I will have been here.
By tomorrow I will have been staying here.
I will have been knowing him.
I will have known him.
Will you have been work?
Will you have been working?
I won't have been wait long.
I won't have been waiting long.
By the time he comes, I will be working for 2 hours.
By the time he comes, I will have been working for 2 hours.
I will have been being tired.
I will have been tired.
How long will you have been having this car?
How long will you have had this car?
By next year, the house will have been being built.
By next year, the house will have been under construction.
الگوهای جملهسازی
By the time ___, I will have been ___ for ___.
In [Month/Year], she will have been ___ at ___ for ___.
Real World Usage
By next month, I will have been working in this industry for five years.
On Saturday, we will have been dating for exactly two years!
By the time we launch, the developers will have been coding for six months.
By the time we reach Tokyo, we will have been traveling for 15 hours.
The subjects will have been receiving the treatment for three weeks before the first evaluation.
By tomorrow, it will have been raining for three days straight.
The 'For' Rule
Stative Verb Alert
Simplify in Speech
Emphasis
Smart Tips
Use the Future Perfect Continuous to describe your upcoming milestones.
Use this tense to emphasize the exhaustion of travel.
Immediately check if you need 'will have been -ing'.
Switch to Future Perfect Simple immediately.
تلفظ
The 'will have' contraction
In natural speech, 'will have' is almost always contracted to 'll have' or even 'll've'.
The weak 'been'
The word 'been' is usually unstressed and pronounced with a short /ɪ/ sound, like 'bin'.
Emphasis on duration
I will have been waiting for FIVE hours!
The speaker is emphasizing the length of time to show frustration or effort.
حفظ کنید
روش یادسپاری
W.H.B.I. - 'Will Have Been -Ing'. Think: 'Will He Be Interesting?' to remember the order of the auxiliary verbs.
تداعی تصویری
Imagine a long, glowing bridge stretching from today into next year. At the end of the bridge is a clock. The bridge represents the 'duration' (have been -ing) and the clock is the 'future point' (will).
Rhyme
By the time the clock strikes ten, I will have been working since who knows when!
Story
A marathon runner is approaching the finish line. As they run, they think: 'By the time I cross that line, I will have been running for four hours.' The line is the future point, and the sweat is the continuous effort.
شبکه واژگان
چالش
Write down one thing you will have been doing for a long time by the end of this year. Use the full structure: 'By December 31st, I will have been...'
نکات فرهنگی
British speakers may use 'shall' instead of 'will' in very formal contexts, though 'shall have been' is becoming extremely rare.
Americans often simplify this tense in casual conversation, opting for the Future Continuous if the duration is already clear from the context.
This tense is frequently used in performance reviews and project planning to emphasize commitment and long-term involvement.
The English future perfect continuous developed as the language moved from a synthetic structure (using endings) to an analytic structure (using auxiliary verbs).
شروعکنندههای مکالمه
By the end of this year, how long will you have been studying English?
If you stay in your current job for another five years, how long will you have been working there in total?
By the time you retire, what is one hobby you will have been doing for most of your life?
Imagine you are on a 20-hour flight. By the 15th hour, how will you be feeling and what will you have been doing?
موضوعات نگارش
اشتباهات رایج
Test Yourself
By the time the guest arrives, I ___ (cook) for three hours.
Find and fix the mistake:
By next week, she will has been living here for a month.
I'm so tired! By the time I get home, I ___ for ten hours.
I am studying English. (By 2026 / for five years)
By next year, I will have been knowing her for a decade.
A: Will you be tired when you arrive? B: Yes, I ___ for two days.
Match each item on the left with its pair on the right:
Score: /8
تمرینهای عملی
8 exercisesBy the time the guest arrives, I ___ (cook) for three hours.
Find and fix the mistake:
By next week, she will has been living here for a month.
I'm so tired! By the time I get home, I ___ for ten hours.
I am studying English. (By 2026 / for five years)
By next year, I will have been knowing her for a decade.
A: Will you be tired when you arrive? B: Yes, I ___ for two days.
1. By midnight... / 2. By next year... / 3. By the time he arrives...
Score: /8
Practice Bank
12 exercisesBy midnight, the band ___ (perform) for five hours straight.
When we meet, I will have waited for over twenty minutes.
Which sentence is grammatically correct?
Translate into English: 'Para cuando termine la obra, habrán estado construyendo el edificio por tres años.'
Put the words in order:
Match the subjects with the correct form:
If you don't call soon, I ___ (worry) about you for hours by now.
By Tuesday, we will have been travel for a week.
Choose the best option:
Translate into English: 'El próximo año, ella habrá estado trabajando como enfermera durante diez años.'
Arrange these words into a sentence:
By the time the festival ends, I ___ (dance) for almost twelve hours!
Score: /12
سوالات متداول (8)
No, it is quite rare. Most native speakers will use the Future Continuous or Future Perfect Simple unless they specifically want to emphasize the duration of an action.
Yes, but only with 'I' and 'we', and it sounds extremely formal or old-fashioned. 'I shall have been working' is grammatically correct but rarely heard.
We use `by` to indicate the deadline or the point in time we are looking back from. We use `until` to show when the action stops. Example: 'By 5:00, I will have been working until I can't see straight.'
Yes, but remember that after 'when', we use the present tense to refer to the future. Example: 'When you arrive, I will have been waiting for an hour.'
Because 'know' is a stative verb. Stative verbs describe states, not actions, and English grammar generally forbids using them in any continuous (-ing) tense.
Technically, yes: 'will have been being + past participle'. However, it is so awkward that native speakers almost never use it. Instead of 'The car will have been being repaired for a week', we say 'The car will have been in the shop for a week'.
You can say 'Won't you have been working?' or 'Will you not have been working?'. The first is much more common in spoken English.
Almost always. Without a time expression like 'for two hours' or 'since morning', the tense loses its primary purpose of showing duration.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Futuro perfecto + gerundio
English always uses 'will have been', while Spanish has alternative verbs for duration.
Futur antérieur + en train de
French avoids the continuous aspect in the future perfect.
Futur II
German lacks a specific continuous form for the future perfect.
~te iru koto ni naru
Japanese focuses on the state/result rather than the auxiliary string 'will have been'.
sa + yakun + qad + kuntu
Arabic uses aspectual particles rather than a single continuous verb form.
yijing ... le
Chinese relies entirely on context and time adverbs.
Learning Path
Prerequisites
ویدیوهای مرتبط
Related Grammar Rules
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