hello everyone how are you today this is Marc - I'm doing great thanks for asking
I've been an English teacher since 1996 I've noticed you're interested in
English language - Your English has improved so far - Have you ever visited
Canada ? - My students have always hated the present perfect tense - in this lesson
we're going to look at the present perfect tense present perfect simple so
stay tuned
finally the present perfect simple some students confuse it with the past or
with a present the present perfect simple can be both a past and a present
and I always say that the present perfect simple it belongs to us it's
a tense that is alive very much alive and we use the auxiliary to have or has
in the third-person singular so I drew a timeline just to show you graphically
how we use the present perfect simple present perfect simple an action that
started sometime in the past, it's not important when and it continues up to
now so when is not important the action however it is and here I wrote an
action that started some time in the past and may continue until the very moment
of speaking I'm going to show you this with different rules and different key
words to help you understand when to use the present perfect simple so let's go
to the formulas now that three times of sentences
for a positive sentence we need the subject plus the auxilary so have or has
plus the past participle it could be regular or irregular if you
want to watch a lesson on regular or irregular verbs you may click here and
then we need the object so an example he has visited Canada so he has visited
Canada right there okay the negative sentence is with a subject then we need
the auxiliary plus not so so have or has plus not then the past participle and
then the object they haven't studied for the exam they haven't studied for the
exam so the action is important not when for a question then WH question word +
auxiliary + subject + the past participle + the time expression for
example have you ever been to a zoo in your town ? - have you ever been to a zoo
in your town ? we have adverbs and time expressions
that we basically know we need to use them with a present perfect simple these
are since and for that we can also use it with the past simple but also with the
present perfect simple just already and yet we all use them with the present
perfect simple still ever never always only this.. this month this year this week
etc so far etc now the most important thing when to use this tense
well the first the first and the most important is to describe life
experiences I've been an English teacher since 1996
so I've been an English teacher since 1986 - Am I an English teacher now ? yes I
am so this is something that belongs to my life I've been an English teacher and
here I gave you an indication of the time I'm
telling you that I'm an English teacher I've been an English teacher since 1996
now let's look at another example he's worked at that office for 10 years
he's worked at that office for 10 years Is he working at an office ? probably yes
or probably not we know that he has worked at that office for 10 years so
here we're not interested exactly when he started working there but he has
worked at that office that's all so life experiences the second point that we use
the present perfect simple with - no specific time when you don't indicate
the time so for example I've noticed you're interested in the English
language I've noticed this is what is important I've noticed you're
interested in the English language so right there I've noticed is the most
important part of the sentence now another example they've seen you at the
library they've seen you at the library here is important that they've seen
you at the library not when obviously were not concentrated on the on the time
but on the action itself number three change over time so when you want to
specify a change Your English has improved so far - so far your English has
improved has gotten better for example another example she has changed so much
over the years so when I first met her she was blonde
then she became brown brown hair so a brunette she has changed so much over
the years the fourth one is for incomplete actions for example have you
ever visited Canada ? we normally use the adverb ever when you want to ask if
somebody did something or not have you ever visited Canada what is important
here if you visit it or not so you're interested in the action another example
he's lost his keys he has lost his keys I can't find them so that means that
he's lost his keys some time in the past I'm not interested but I'm interested
that he has lost his keys the last way to use it is for accomplishments for
example Germany has won the World Cup this year this year means that it's
still going on right we are in 2017 for example and Germany has won the World
Cup this year it's not true but we suppose that we just pretend that
Germany has won the World Cup this year or another example my students have
always hated the present perfect simple I hope after this lesson they don't hate
it anymore my students have always hated the present perfect simple well I thank
you very much for watching this was a very tough
lesson I hope you enjoyed it and if you have you may share it if you have any
questions or comments type them under this video if you haven't subscribed to
my channel I suggest you do and if you want to type your own example of the
present perfect simple you may do so under this video
having said that thank you very much for watching and I see you next week with a
new grammar lesson take care