What's the Difference Between Past Simple and Present Perfect?

I'm just going to ask you to explain some common questions that people ask me as an English teacher. What's the difference? Because I see the, you know, I don't know the difference. The French has pushed the rest of it out of my brain. So I might need to learn English again. All right. It's super simple. The answer and you're not super simple. Nice. Okay. These two. This is because you might be my tutor. And so can I keep going? All right. We'll go through them one at a time. Now we've got our first question: How do you use the present perfect tense in your own language? You say