The present continuous: Be + Verb-ing:
We use the verb « to be » for a description

We use to be at the present continuous, at the time of speaking, if we want to describe a scene.
It’s a nice place.
There is a museum inside the castle.
There are many pictures.

TO BE: we use it when we want to describe a scene.
I am going home.
You are reading a book.
He is opening the door. She is smiling. It’s raining.
We are studying english.
You are running.
The students are listening the teacher.

HAVE, LOOK, SEEM: we can use these verbs for a description.
But with the Simple Present form, that’s the exception.
The castle has four towers.
He looks very young. How old is he?
You seem sad, are you ok?

 

PRESENT:

• 001a: Present Continuous: I am doing
• 001b: Present Continuous: I am doing (2)
• 001c: Present Continuous: I am doing, description (3)
• 002:  Present Simple: I do
• 003a: Present Continuous or Present Simple? I’m doing … or … I do … ?
• 003b: Present Continuous or Present Simple? I’m doing … or … I do …? (2)
• 003c: Present Continuous or Present Simple? I’m doing … or … I do … ? (3)