Simple Past and Present Perfect

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Present perfect and simple past

Present perfect is used for :

*General experiences= we don’t know when it happened

I have visited Cancun , I went last Summer , I went with my family , and I spent the days in the pool and in the sea

I have visited Puerto Vallarta, I played in the beach

I have visited NY

She has taken English classes before, but she didn’t like them

They have been in my house, we had an excellent time.

When we give details of the event we use simple past .

* Something that started in the past but keeps happening in the present

I have been a teacher for 5 years ( that I started working as a teacher in 2015 and that I am still a teacher), I’ve worked in Boston for 4.5 years

You have taken English classes for the last 3 months.

* the number of times that an action has been done.

Your mother has called you 3 times, you better call her back.

I have given this level 15 times.

I haven’t been to Australia = I have never been to Australia.

She has not been in LA = she hasn’t been in LA

Time expressions

Already =is when something happened before you were expecting it.

I have already done them

I have already finished my final project.

It is always positive / it goes between have or has and the verb in past participle.

Yet= something that hasn’t happened but is soon to be done or finished

I haven’t finished my project yet

Have you bought your books yet?

You can use it in negatives or in questions, it is always placed at the end.

Just= something that happened a SHORT time ago

I have just explained the meaning of “already “

They have just got married

Areli has just arrived.

For= to talk about a period of time ( how long) ( durations)

I have waited for 3 hours

They have worked in this project for 3 years

They have been in the meeting for 5 hours

Since= to talk about the starting point of an action

I have been a teacher since 2015.

They have been in the meeting since 3:00pm / this means that now is 8:00 pm

+sub+ have /has + ( already/ just/ never) + verb in past participle + complement

Agustin HAS visited Puerto Vallarta

_Sub+ haven’t/hasn’t + verb in past participle + complement (yet)

Agustin hasn’t visited Puerto Vallarta

?Have/ has + sub + ( ever) +verb in past participle + complement (yet)?

Has Agustin visited Puerto vallarta

HAVE / haven’t = -I YOU WE THEY

HAS/ hasn’t = HE SHE IT