វេយ្យាករណ៍ៈ​present perfect simple

We form the present perfect continuous tense like this:

យើងបង្កើតទម្រង់ the present perfect continuous ដូចនេះ៖     

Positive form:

Subject + have/has + been + base verb +ING +...

(Base Verb + ING is also called the present participle)

·         They have been waiting for you for hours.

ពួកគេបានរង់ចាំអ្នកច្រើនម៉ោងហើយ។

·         Mr. Savery has been running his English part-time classes since 2010.

លោក សាវរី បានបង្រៀនភាសាអង់គ្លេសក្រៅម៉ោងតាំងពីឆ្នាំ ២០១០។

·         I have been studying ​how to create a website for a year.

ខ្ញុំបានរៀនពីរបៀបបង្កើតគេហទំព័រមួយឆ្នាំហើយ។