Present Perfect vs Simple Past

1. Simple past is used for actions that have ended in the past

2. We often use the present perfect to ask about a past action for the first time.

3. We the use the simple past to ask about specific past details.

4. Been/Gone

4.1. We use been to say that somebody has visted a place.

4.2. We use gone to when somebody goes to a place and is still here.

5. We use the present perfect for actions at a time in the nonspecific past

6. I have had three exams already this week.

7. With the present perfect the action is related to the present

8. Examples

8.1. Simple Past:

8.2. Did you eat breakfast this morning?

8.3. I had three exams this week

8.4. Present Perfect:

8.5. Have you eaten breakfast yet this morning?