When to use “in”, “on” and “at”

Question

I’m not a native speaker and I started English classes in school later than everyone else, so I started in 4th grade when everyone else has already 3 years of learning the basics, and since these are really basic words I never learned them in class

So, please, how do I know when to use each one? I can get by a bit as evidenced in this post, but a lot of times I get it wrong

In: Other

Answer 1

I was in a car and I parked next to a guy on a motorcycle at the parking lot. We then moved and parked in the parking garage. We went in the elevator and it took us up where we could see the view while on the roof at the lounge on top of the building.

I hope my example helps!