Grammar: B1 - ⚙️ Verbs in Depth: 🎭 Modals & 🌱 Non-Finite Verbs (Introduction) - Lesson 7: Infinitives of Purpose (I study English to get a better job.)

Grammar B1

my_location

The "Why" Word

ប្រាប់ពីគោលបំណង (Infinitive of Purpose)

We use To + Verb to explain why we do an action.

យើងប្រើប្រាស់ទម្រង់ To + កិរិយាសព្ទដើម ដើម្បីប្រាប់ពីមូលហេតុ ឬគោលបំណងដែលយើងធ្វើសកម្មភាពអ្វីមួយ។

rocket_launch

rocket_launch 1. Basic Form

ទម្រង់មូលដ្ឋាន (Action + to + Base Verb)

I study English to get a job.

ខ្ញុំរៀនភាសាអង់គ្លេសដើម្បីទទួលបានការងារធ្វើ។

She called to say happy birthday.

នាងបានខលមកដើម្បីជូនពរថ្ងៃកំណើត។

work

work 2. Formal Ways

ទម្រង់ផ្លូវការ (in order to / so as to)

He went early in order to finish.

គាត់បានទៅមុន ដើម្បីបញ្ជប់ការងារ។

I speak slowly so as to be clear.

ខ្ញុំនិយាយយឺតៗ ដើម្បីឱ្យច្បាស់។

block

block 3. Negative Form

ទម្រង់បដិសេធ (in order not to)

I left early in order not to be late.

ខ្ញុំបានចេញមកមុន ដើម្បីកុំឱ្យយឺត។

*We rarely use "not to" alone!

(យើងកម្រប្រើ "not to" តែឯងណាស់ ត្រូវប្រើភ្ជាប់ជាមួយ in order ឬ so as)

gpp_maybe The "For" Trap!

Do NOT use "for + verb" to explain your purpose!

(កុំប្រើ "for + កិរិយាសព្ទ" ដើម្បីប្រាប់ពីគោលបំណងរបស់អ្នកឱ្យសោះ ត្រូវប្រើ "to + កិរិយាសព្ទដើម"!)

I went out for buy milk. close
I went out for buying milk. close
I went out to buy milk. check

quiz

Quick Check ⚡

ការត្រួតពិនិត្យរហ័ស

fact_check Choose the right word

I went to the supermarket ___ some milk.

(ខ្ញុំបានទៅផ្សារទំនើបដើម្បីទិញទឹកដោះគោ។)

fact_check Choose the right word

She is saving money ___ travel to Japan.

(នាងកំពុងសន្សំលុយដើម្បីដើរលេងនៅប្រទេសជប៉ុន។)

gpp_maybe GRAMMAR TRAP! ❌

He studies hard in order ___ fail.

(គាត់ខិតខំរៀនដើម្បីកុំឱ្យប្រឡងធ្លាក់។)

fact_check Choose the right word

I called my mom ___ her happy birthday.

(ខ្ញុំបានខលទៅម្តាយខ្ញុំដើម្បីជូនពរថ្ងៃកំណើតគាត់។)

edit_document

Mission 🎯

អនុវត្តផ្ទាល់!

Your Goal edit_document (សរសេរប្រយោគមួយប្រាប់ពីមូលហេតុដែលអ្នករៀនភាសាអង់គ្លេស។ "I learn English to...")

smartphone

Mission 🎯

អនុវត្តផ្ទាល់!

Object Purpose smartphone (មើលទូរស័ព្ទរបស់អ្នក រួចឆ្លើយសំណួរនេះ៖ "Why did you buy your phone?" ចម្លើយ៖ "I bought my phone to...")

record_voice_over

Mission 🎯

អនុវត្តផ្ទាល់!

Speak up! record_voice_over (និយាយប្រយោគនេះឱ្យឮៗ៖ "I am here to learn!")

Video Lesson

មេរៀនជាវីដេអូ

Listen Closely headphones

Watch Teacher Sopheak explain today's topic. Listen for verbs that explain the *purpose* or goal of an action!

Ask a Question 🙋‍♂️

តើអ្នកមានចម្ងល់មែនទេ? សួរគ្រូនៅទីនេះ!

U

Recent Questions

S

Sovan 2 hours ago

Teacher, can I say "I study English for get a good job"?

Reply thumb_up 12

SP

Sopheak Pich Teacher 1 hour ago

Hi Sovan! No, you cannot use "for + verb". You must use "to + verb" (to get). You can only use "for" if a noun follows it, like "I study English for my career." ✨

V

Vireak 5 hours ago

What about "for learning"? I hear people say that.

Reply thumb_up 8

SP

Sopheak Pich Teacher 4 hours ago

Good ear, Vireak! We use "for + -ing" to talk about the general *function* of an object. Example: "A pen is for writing." But when explaining your *personal purpose*, always use "to". "I bought a pen to write a letter." 👍