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PRESENT PERFECT SIMPLE VS PAST SIMPLE

Present Perfect Past Simple

Simple

For actions that

For actions that happened at a definite

happened in the past, but time in the past or

we do not say when actions that were started

exactly or still happening and were completed in

in the present. the past.

Unfinished time Finished time

- I have worked as a - They lived in Korea from

doctor since 2010. 2000 to 2005.

Indefinite time Definite time

- I have seen the KLCC. - I saw the KLCC in 2012.

Experience Series of finished actions.

- Have you listened to this - First, he listened to the

song? song and then he

watched a television.

Result

- She has already listened Repeated action.

to this song four times. - He went to the

shopping mall every

weekend last year.

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