Present Perfect Simple
Actions that express experience or results.
She has just finished the book.
I have seen that movie
Verb + -ed
Past Tense Simple
Events/ states that started in the past and are still ongoing at the present moment.
2nd form of the Irregular verbs
I watched that movie yesterday
Have/has + past participle
Form of Present Perfect Simple
Actions that happened and finished in the past
Example of Past Tense Simple
I have been angry with her for 2 weeks.
I wrote an exercise and hour ago.
Actions that happened in the past but have a connection to the present
I have visited this museum twice.
Actions that happened recently.
Example of Present Perfect Simple
Form of Past Tense Simple