hello everyone how are you today this is
mark
i have a very important lesson today
i've been teaching english in rome since
1997
but i've never taught kids
yes in this lesson we're going to talk
about the difference between the present
perfect simple
and the present perfect continuous so
stay tuned
okay in this lesson we're going to talk
about the present perfect simple and the
present perfect continuous
i have talked about them
in two separate occasions so if you want
to take a look at them you may do so by
looking for the present perfect simple
and the present perfect continuous
now let's take a look at my two examples
and the differences
okay finished so the present perfect
simple is for finished actions that have
an effect in the present okay that have
an effect in the present
okay do not confuse it with the past
simple
the past simple
has
a time expression okay or you know when
it happened obviously is
in the past okay the present perfect
simple has an effect in the present okay
in the presence so
the example that i wrote here is i've
just washed my hair
okay you have here the um adverb just
you know also we have yets
and we have already that we use with the
present perfect
okay in this case i just uh i've just
washed my hair just to show you that
just is used just now right so is in the
present it's an action that happened in
the present
now
this um
tense of or the present perfect simple
focuses more on the activity itself
and that the action is completed
okay
this is very important i wrote another
example for you um to uh just to stress
the fact that the action is finished
he's read he has read
the book i recommend it
did he finish
reading the book
yes he did okay he has read we don't
know when okay we don't care when
if we want to know when we use the
past simple that's right the past simple
so here is
uh the emphasis is more on the activity
itself and that the action is completed
the present perfect simple
now the present perfect continuous
instead
we use it for unfinished actions
that have an effect in the present
unfinished
what do i mean by that let's look at the
example
i've been
writing an assignment for a week now
i've been writing is it finished
no it's not finished
the other thing that
you need to pay attention
is that um we usually use it uh to
emphasize a duration okay so like in the
example i've been writing
an assignment for a week now for a week
now so this is the emphasis of duration
okay
now i have another another example here
for you to
to compare
i've been waiting for an hour
what happened to you i've been waiting
for an hour what happened to you okay
so is the emphasis here on the duration
present perfect continuous
so we have other two examples or other
two uses
okay we
use the present perfect simple when
talking about how much
and how many
and i wrote an example
they've
eaten
six burgers for dinner okay six burgers
hamburgers i mean for dinner they've
eaten six burgers for dinner there's a
lot so we use it with a present perfect
simple
then
uh the present perfect continuous is
also used to emphasize that the action
is temporary is temporary
the example here
he usually studies at home
but he has been studying in the library
for the last week
so the emphasis here is because he
doesn't
study at home uh in this period
but he has been studying in the library
for the last week okay
now i want to go back to my um
example introductory example
and we are going to analyze it together
okay now let's look at my introductory
example
okay i said
i've been teaching english in rome
since 1997
but have never taught kids
okay here we have
the both tenses in one sentence
so let's analyze it
do i teach english in rome
yes the answer is yes
do i teach english to kids
no
the answer is no
do i teach english to adults
yes that's right yes
the first part of our sentence we used
the
present perfect continuous
why because i'm still doing it i'm still
teaching english
since 1997
okay so it's an unfinished action that
has an effect in
in the present obviously
what about the second part
with
the present perfect simple
well
i've never taught english to kids
so
it's
present yes it's present
but i've never taught to kids could i do
it in the future could i teach english
in the future to kids i mean
yes
i could in the future i could
so but i've never taught so far i've
never taught kids
okay
a piece of advice in order to use both
these tenses in a correct way
i suggest to write two true sentences
about your life using both
the present perfect continuous and the
present perfect simple
just like my own example now let's recap
so we said that we use the present
perfect simple for finished actions that
have an effect in the present
we use the present perfect continuous
for unfinished actions that have an
effect in the present i also said that
we use the present perfect continuous to
emphasize duration to focus on the
activity itself and to emphasize that
the action is temporary i also said that
the present perfect simple is used when
talking about quantities i mean how much
how many and remember that we use it for
finished actions that have an effect in
the present
this is about the present perfect symbol
thank you very much for watching i hope
you enjoyed the lessons as i can see oh
oops sorry stop here
stop cut
thank you very much for watching i have
never expected so many of you watching
my lessons
thank you very much again
thank you for your comments if you have
any questions
maybe suggestions you may type them
under this video
again
have a great day and see you
next week
take care bye
you