PERFECT SIMPLE vs PRESENT
present perfect tense uses have
or has as
an auxiliary or first verb. With the present perfect continuous,
the last verb ends in -ing.
have been studying
have been playing
has been eating
has been dreaming
is the difference in meaning between the two tenses?
They are very close and can often be used interchangeably.
It usually refers to a completed action.
The emphasis is on the achievement or result.
The action is either still continuing or is very recently
The emphasis is on the duration of the act.
He has been writing books since 1970. (emphasis on duration
- since 1970)
(2) He has written ten best sellers. (emphasis on result
- ten best sellers)
I have been driving all day. (emphasis on duration - all
(2) I have driven 600 kilometres. (emphasis on result -