There with Future Perfect Continuous 

Future Perfect Continuous Tense में “There will have been” का प्रयोग तब किया जाता है जब हमें बताना होता है कि भविष्य के किसी निश्चित समय तक कोई स्थिति, घटना या कार्य लगातार जारी रहा होगा। इसका structure है: There + will have been + noun + verb-ing। यह दर्शाता है कि भविष्य में कोई काम या स्थिति कुछ समय से लगातार चल रही होगी। उदाहरण के लिए: “There will have been people waiting outside the hall for two hours by noon.” इसका अर्थ है “दोपहर तक लोग हॉल के बाहर दो घंटे से इंतज़ार कर रहे होंगे।” यहाँ waiting लगातार चलने वाले कार्य को दिखा रहा है। इस structure का प्रयोग तब होता है जब किसी ongoing activity की duration (समय अवधि) बतानी हो, जैसे for two hours, since morning, by tomorrow आदि।

Affirmative 

Sentence: There will have been teachers teaching here for two years.
Structure: There + will have been + noun + verb-ing + place + time
Parts of Speech: There – Dummy Subject, will have been – Verb, teachers – Noun, teaching – Verb (ing), here – Adverb, for two years – Time Phrase
👉 Hindi: यहाँ दो साल से शिक्षक पढ़ा रहे होंगे।

Negative

Sentence: There will not have been students attending the class since yesterday.
Structure: There + will not have been + noun + verb-ing + object + time
Parts of Speech: There – Dummy Subject, will not have been – Negative Verb, students – Noun, attending – Verb (ing), the class – Object, since yesterday – Time Phrase
👉 Hindi: कल से विद्यार्थी कक्षा में उपस्थित नहीं हो रहे होंगे।

Interrogative

Sentence: Will there have been people waiting here for hours?
Structure: Will + there have been + noun + verb-ing + place + time
Parts of Speech: Will – Modal, there – Dummy Subject, have been – Verb, people – Noun, waiting – Verb (ing), here – Adverb, for hours – Time Phrase
👉 Hindi: क्या लोग यहाँ घंटों से इंतज़ार कर रहे होंगे?

Negative Interrogative

Sentence: Won’t there have been people waiting outside for hours?
Structure: Won’t + there have been + noun + verb-ing + place + time
Parts of Speech:Won’t – Modal (negative), there – Dummy Subject, have been – Verb, people – Noun, waiting – Verb (ing), outside – Adverb, for hours – Time Phrase
👉 Hindi: क्या लोग घंटों से बाहर इंतज़ार नहीं कर रहे होंगे?

Wh-Word Interrogative

Sentence: How long will there have been workers repairing the building?
Structure: Wh-word + will + there have been + noun + verb-ing + object
Parts of Speech: How long – Wh-phrase, will – Modal, there – Dummy Subject, have been – Verb, workers – Noun, repairing – Verb (ing), the building – Object
👉 Hindi: मजदूर कब से इमारत की मरम्मत कर रहे होंगे?

1. Affirmative
There will have been people waiting here for hours.
यहाँ लोग घंटों से इंतज़ार कर रहे होंगे।

2. Negative
There will not have been any students studying in the class.
कक्षा में कोई छात्र पढ़ाई नहीं कर रहा होगा।

3. Interrogative
Will there have been workers building the road for a long time?
क्या वहाँ मजदूर लंबे समय से सड़क बना रहे होंगे?

4. Negative Interrogative
Will there not have been guests staying in the hotel?
क्या होटल में मेहमान नहीं ठहर रहे होंगे?

5. Wh-word Interrogative
Why will there have been people shouting outside?
बाहर लोग क्यों चिल्ला रहे होंगे?

6. Wh-word Negative Interrogative
Why will there not have been any buses running on the road?
सड़क पर कोई बसें क्यों नहीं चल रही होंगी?