Present Simple

The Present Simple tense is used to express actions that happen regularly or habitually. These actions can be in the past, present and future as there is no fixed time.

I play basketball. I eat healthy food.

It can be used to express facts and opinions

The earth is the shape of a globe. The sun is hot. We are humans.

The Present Simple can also be used to talk about future events / scheduled events when used with expressions of time.

The train arrives at 8pm today. I take my exam in an hour.