Grammar: ⚙️ Verbs in Depth: ⏳ Perfect Continuous & Future Perfect Tenses (B2) - Lesson 1: Present Perfect Continuous (Form & Use: emphasis on duration of unfinished actions)

B2: Present Perfect Continuous

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The Ongoing Action

បច្ចុប្បន្នកាលបរិបូរណ៍បន្ត (Present Perfect Continuous)

This tense describes an action that started in the past and is still continuing now. It emphasizes how long (the duration).

វាប្រើសម្រាប់ពណ៌នាសកម្មភាពដែលបានចាប់ផ្តើមក្នុងអតីតកាល ហើយនៅតែបន្តដល់បច្ចុប្បន្ន។ វាផ្តោតសំខាន់លើ "រយៈពេល" នៃសកម្មភាពនោះ។

build

build The Formula

រូបមន្តទូទៅ

Subject + have/has + been + Verb-ing

I / You / We / They ➔ have been He / She / It ➔ has been

timelapse

timelapse Focus on Duration

ផ្តោតលើរយៈពេល (for, since, all day)

menu_book

I have been studying for 3 hours.

ខ្ញុំបានរៀនអស់រយៈពេល ៣ ម៉ោងមកហើយ។ (ឥឡូវក៏នៅតែរៀន)

work

She has been working all day.

នាងបានធ្វើការពេញមួយថ្ងៃ។

visibility

visibility Recent Evidence

ភស្តុតាងឬលទ្ធផលដែលយើងអាចមើលឃើញឥឡូវនេះ

We also use it when an action just stopped, but we can see the result right now.

face

You look tired. Have you been working hard?

អ្នកមើលទៅហត់នឿយណាស់។ តើអ្នកបានខំធ្វើការខ្លាំងមែនទេ? (ភស្តុតាង: មុខមាត់ហត់)

water_drop

The ground is wet. It has been raining.

ដីសើម។ មេឃទើបតែរាំងភ្លៀងអម្បាញ់មិញ។

warning Simple vs. Continuous

Result vs. Duration

(កុំច្រឡំគ្នា! Simple ផ្តោតលើ "លទ្ធផល ឬចំនួនដែលធ្វើបាន"។ Continuous ផ្តោតលើ "សកម្មភាពដែលកំពុងបន្ត និងរយៈពេល"។)

Continuous (Duration)

I have been reading this book all day.

(I am still reading it.)

Simple (Result/Quantity)

I have read 50 pages today.

(Result: 50 pages are finished.)

Video Lesson

មេរៀនជាវីដេអូ

The Ongoing Action 🎬

Watch Teacher Sopheak break down the difference between focusing on the result vs. focusing on the duration. This is key for B2 mastery!

quiz

Quick Check ⚡

ការត្រួតពិនិត្យចំណេះដឹង ⚡

construction Form Check

They ___ for 2 hours.

(ពួកគេបានរង់ចាំអស់រយៈពេល ២ ម៉ោងហើយ។)

timelapse Duration

I have been working here ___ 2023.

(ខ្ញុំបានធ្វើការនៅទីនេះតាំងពីឆ្នាំ ២០២៣ មកម៉្លេះ។)

gpp_maybe TRICKY QUESTION!

Which sentence is correct?

(តើប្រយោគមួយណាត្រឹមត្រូវ?)

visibility Meaning

If someone says: "Your hands are dirty. Have you been fixing the car?"

(តើហេតុអ្វីបានជាគេប្រើកាលនេះនៅទីនេះ?)

visibility

sports_esports Mission 1!

My Hobby 🎮

Write 1 sentence about your hobby using "for" or "since". (e.g. I have been playing guitar for...)

សរសេរប្រយោគ ១ ប្រាប់ពីចំណង់ចំណូលចិត្ត ឬជំនាញដែលអ្នកកំពុងរៀន ដោយបញ្ជាក់ពីរយៈពេល (for/since)។

I did it! check_circle

visibility

visibility Mission 2!

The Evidence 👁️

Observe someone and write a question based on what you see. (e.g. You look hot. Have you been running?)

សង្កេតមើលមិត្តភក្តិ ឬអ្នកនៅជុំវិញអ្នក ហើយសរសេរសំណួរ ១ ដោយផ្អែកលើអ្វីដែលអ្នកឃើញ។

I did it! check_circle

visibility

build Mission 3!

Fix the Mistake 🛠️

Fix this sentence: "I have been knowing him for 5 years."

កែប្រយោគនេះឲ្យត្រូវតាមវេយ្យាករណ៍។

I did it! check_circle

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Lesson Complete!

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