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។
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