Grammar: ⚙️ Verbs in Depth: ⏳ Perfect Continuous & Future Perfect Tenses (B2) - Lesson 6: Future Perfect Simple (Actions completed by a certain future time)

Grammar: B2 Verbs

⏳

Future Perfect Simple

អនាគតកាលបរិបូរណ៍ធម្មតា

Looking back from the future to an action that is already finished!

ប្រើសម្រាប់និយាយពីសកម្មភាពដែល "នឹងបានបញ្ចប់រួចរាល់" នៅមុនពេលកំណត់ណាមួយក្នុងអនាគត។

⚙️

The Formula ⚙️

ទម្រង់នៃប្រយោគ

Affirmative (+) Subject + will have + V3 (Past Participle) I will have finished the report.

Negative (-) Subject + will not (won't) have + V3 She won't have arrived yet.

Question (?) Will + Subject + have + V3? Will they have eaten dinner?

⏰

Time Expressions ⏰

ពាក្យបញ្ជាក់ពេលវេលា (Deadline Words)

We almost always use a "deadline" word with this tense to show WHEN the action will be finished.

By + [Time] By By 5 PM, I will have sent the email. (ត្រឹមម៉ោង ៥ ល្ងាច ខ្ញុំនឹងបានផ្ញើអ៊ីមែលរួចរាល់។)

By the time + [Present Simple] By the time By the time you arrive, we will have eaten. (ត្រឹមពេលដែលអ្នកមកដល់ ពួកយើងនឹងបានញ៉ាំបាយរួចហើយ។) (Never use "will" right after "by the time"!)

Before + [Time] Before They will have built the bridge before next year. (ពួកគេនឹងបានសាងសង់ស្ពាននោះរួចរាល់មុនឆ្នាំក្រោយ។)

🎯

Common Uses 🎯

ការប្រើប្រាស់ទូទៅ

Setting Goals & Deadlines By the end of this month, I will have saved $500. (ត្រឹមចុងខែនេះ ខ្ញុំនឹងសន្សំលុយបាន ៥០០ដុល្លារ។)

Making Predictions (Assumptions) Call him now. He won't have left the office yet. (តេទៅគាត់ឥឡូវទៅ។ គាត់ប្រហែលជាមិនទាន់ចេញពីការិយាល័យទេ។) *Assuming something is/isn't complete right now.

Tense Trap!

Future Simple vs. Future Perfect

Future Simple: The action HAPPENS at that time.
Future Perfect: The action is FINISHED by that time.

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At 8 PM, I will eat dinner. (ចាប់ផ្តើមញ៉ាំម៉ោង ៨)
By 8 PM, I will have eaten dinner. (ម៉ោង ៨ ញ៉ាំរួចបាត់ហើយ)

Quick Check ⚡

ការត្រួតពិនិត្យរហ័ស

Concept Check

We use the Future Perfect Simple to talk about...

(តើយើងប្រើអនាគតកាលបរិបូរណ៍ធម្មតាដើម្បីនិយាយពីអ្វី?)

Form Completion

By next week, she ___ all her exams.

(ត្រឹមសប្តាហ៍ក្រោយ នាងនឹងបានប្រឡងរួចរាល់ទាំងអស់។)

TIME EXPRESSION TRAP! ❌

By the time he ___, the movie will have started.

(រំលឹក: កុំប្រើ 'will' បន្ទាប់ពី 'by the time')

Meaning Contrast

"I will have left by 5 PM." What does this mean?

(តើប្រយោគនេះមានន័យដូចម្តេច?)

Translation Match

តើពួកយើងនឹងបានទៅដល់ទីនោះមុនពេលងងឹតទេ?

(Choose the correct English translation)

Mission 🎯

អនុវត្តផ្ទាល់!

Set a Goal 🎯 (សរសេរប្រយោគ ១ អំពីគោលដៅដែលអ្នកនឹងសម្រេចបាននៅចុងឆ្នាំនេះ។ ឧ. "By December, I will have...")

Mission 🎯

អនុវត្តផ្ទាល់!

News Hunter 📰 (អានព័ត៌មានអន្តរជាតិ (News) ហើយរកមើលការប្រើប្រាស់ Future Perfect ១ ប្រយោគ។)

Mission 🎯

អនុវត្តផ្ទាល់!

Teach a friend 🙋‍♂️ (ពន្យល់មិត្តភក្តិថា ហេតុអ្វីយើងមិនត្រូវប្រើ "will" នៅពីក្រោយ "By the time"!)

Mission 🎯

អនុវត្តផ្ទាល់!

Voice Note Prediction 🎤 (ថតសំឡេងព្យាករណ៍ពីឆ្នាំ ២០៥០។ "By 2050, we will have...")

Video Lesson

មេរៀនជាវីដេអូ

Ask a Question 🙋‍♂️

តើអ្នកមានចម្ងល់មែនទេ? សួរគ្រូនៅទីនេះ!

U

Recent Questions

S

Sovan 2 hours ago

Can I use "until" instead of "by"? Like "Until 5 PM, I will have finished."?

Reply 👍 12

SP

Sopheak Pich Teacher 1 hour ago

No, be careful! "By" means 'not later than a specific time'. "Until" is used for actions that continue up to a point and then stop. With Future Perfect, we almost always use "By". 🚫

M

Minea 5 hours ago

What if the verb is irregular? Do I still use V3?

Reply 👍 6

SP

Sopheak Pich Teacher 4 hours ago

Yes! ALWAYS use the Past Participle (V3). For regular verbs, it's -ed (finished). For irregular verbs, it changes: "By tomorrow, I will have **eaten** / **seen** / **written**." 📝

K

Kosal 8 hours ago

Do native speakers actually use this tense in everyday speaking? It feels so long.

Reply 👍 15

SP

Sopheak Pich Teacher 7 hours ago

Yes, they do! Especially when talking about plans, work deadlines, or travel. But in speaking, we usually use contractions to make it faster: "I'll have finished" (I'll've finished). 🗣️