Present Perfect Simple Vs Present Perfect Continuous in Khmer

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Present Perfect Simple Vs Present Perfect Continuous/Progressive
I. Present Perfect Simple (Use)
There are three main uses of the Present Perfect Simple
1. Unfinished Past
The verb action began in the past and continues to the present. It possibly goes on into the future, as well.
We’ve lived in this house for 20 years.
I’ve been a teacher since 2004.
We’ve met for ten years.
Sam has been married since 2013.
2. Indefinite Past
The verb action happened at an unspecific time in the past. The actual time is not important. We are focusing on the experience at some time in our life.
Have you ever taken any illegal drugs?
I’ve been to the USA.
Sam has travelled to many parts of Europe.
I’ve made a presentation.
3. Present Result
The verb action happened in the past, usually the recent past, and the results of the action are relevant now.
You’ve changed. What have you done to yourself?
I’ve lost some weight.
I’ve cut my fingers.
I’ve broken a tooth.

II. Present Perfect Continuous (Usage)
The Present Perfect Continuous expresses:
1. an activity that began in the past and is continuing now.
I’ve been studying English for three years.
How long have you been working here?
Sometimes there is no difference between the simple and the continuous
They’ve been playing the piano since I was a boy.
They’ve played the piano since I was a boy.
The continuous expresses a temporary activity, while the simple expresses a permanent state.
I’ve been living in this house for the past few months. (temporary)
I’ve lived here all my life. ( permanent)
*** Remember: State verbs are rarely used in the continuous.
I’ve had this book for ages.
We’ve always loved sunny days.
2. an activity that has caused a present result.
I’ve been working all day. (I’m tired now.)
Have you been crying? (Your eyes are red.)
Roger’s been cutting the grass. ( I can smell it.)
The past activity might be finished or it might not. The context usually makes this clear.
Look out of the window! It’s been snowing.
(It has stopped snowing now.)
I’ve been writing this book for two years. (It still isn’t finished.)
I’m covered in paint because I’ve been decorating the bathroom.
(It might be finished or it might not. We don’t know.)



























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