This document summarizes the past simple and present perfect tenses in English. It provides the forms, uses, and examples of these tenses. The past simple is used to talk about finished or definite times in the past, while the present perfect is used to talk about unfinished or indefinite times, experiences up until now, or actions that started in the past and continue in the present. Examples are given for regular and irregular verbs in the affirmative, negative, and interrogative forms in both tenses.

1. Past Simple Present Perfect
Form: Affermative
Regular verbs. Subj. + verb + "ed"
I __________my grandparents on the
weekend.
Subj. + have/has + past participle
We ______ visited many places.
Irregular verbs. Subj. + irregular verb
We _____together for lunch.
We have _______ together many times
for lunch.
Negative
Subj. + didn't + base verb.
He didn't ________his coffee.
Subj. + haven't/hasn't + past participle
He hasn't _________ TV today.
Interrogative
Question word +aux+subj.+ base verb
What did you ______ to on
the radio?
Question word + aux + subj. + p.p.
Have you ______ your
homework yet?
Use:
to speak about "finished" or "definite"
time
to speak about "unfinished" or "indefinite"
time.
yesterday today
last week, month, year this week......
on Monday/at 4:00 o'clock/ in June Since + beginning of the period of time
since Monday/4:00 o'clock/June
I have ____ this watch _____2013.
3 minutes, hours, days months years ago For + period of time that starts in the
past and continues to the present.
for 3 minutes,hours, days, months, years
I have _____ this watch ____ 2 years.
for + period of time that starts and
finishes in the past
He had this watch for three years but
then he lost it.
just
I ____ just finished the book.
yet (questions/negatives);already (pos.)
Have you seen that film______?
She hasn't bought the ticket _____.
We have__________been to London.
Been=go and return gone= go but haven't
returned yet.
She has ____ to Rome many times.

2. Where is Sara?She isn't here. She's ____
to Mary's house.
N.B. Use "still" with present simple.
Iliked cartoons when I was a child. I still like cartoons.