Past Sipmle VS Present Perfect

WHEN do we use each tense in English?

The Simple Past always refers to an action or situation that is finished

The Present Perfect connects the past and the present. It is used to show that an action or situation in the past …
continues today or might happen again

Use Simple Past for action that happened in the past and is
over, done , finished!

Use the Present Perfect for action that started in the past, but…
is still true today.

FORM:
The Past Simple Tense
Signal words (time expressions): yesterday,
last.. (week, month, year etc.),
one month ago,
in 1990,
the day before yesterday,
in May,
on Sunday

FORM:
The Present Perfect Tense
Signal words (time expressions):
Already
Just
Never, ever between have/has+V3
Lately
Recently
Yet, not yet at the end of the sentence

Remember:

Grammar has meaning!
Different grammar tenses are used in different situations or contexts and they carry different meanings

For Example…