Grammar: ⚙️ Verbs in Depth: ⏳ Perfect Continuous & Future Perfect Tenses (B2) - Lesson 7: Future Perfect Continuous (Duration of an action up to a certain future time)

ESL Cambodia 🇰🇭

Future Perfect Continuous

Duration up to a Future Point

Looking back from the future...

Start

NOW

Next Year

⟵ "How Long?" ⟶

will have been + V-ing

Use with: "By...", "For..."

⏳ Examples (ឧទាហរណ៍)

By 5 PM, I will have been waiting for two hours.

ត្រឹមម៉ោង ៥ ខ្ញុំនឹងបានរង់ចាំអស់រយៈពេល ២ ម៉ោងហើយ

Next year, they will have been living here for 10 years.

ឆ្នាំក្រោយ ពួកគេនឹងបានរស់នៅទីនេះអស់រយៈពេល ១០ ឆ្នាំហើយ

⚠️ Stative Verbs (No -ing):

Don't use with verbs like know, like, have.
❌ I will have been knowing him.
✅ I will have known him. (Future Perfect Simple)

Career Goals 🎓

Vanna talks about 2030.

Dara 🧑

When will you finish your English course?

Vanna 👩

Next month! By then, I will have been studying for 3 years.

Dara 🧑

Wow. And what about your job?

Vanna 👩

By 2030, I will have been working at the bank for 5 years.

Check Your Skills 🧠

Simple, Continuous, or Error?

By 8 PM, we ___ (wait) for 3 hours.

In December, they ___ (married) for 20 years.

Hint: "Married" is a state, not action.

Next year, I ___ (learn) Khmer for 1 year.

Mission 📝

Your Timeline

Predict 2030:

Complete sentences about yourself in the future.

• 1. By next year, I will have been studying...
  (e.g., ...English for 2 years.)
• 2. By 2030, I will have been living...
  (e.g., ...in Phnom Penh for 5 years.)
• 3. By 6 PM tonight, I will have been...
  (e.g., ...working for 8 hours.)