I am going to school now. We gebruiken present continuous dingen die nu gebeuren.
In Nederlands : Ik ben aan het eten.
In Engels:          I am eating
to be (am, is, are)  (afhankelijk van de persoonlijke voornaamwoord)  +       ww+ing
I am eating a sandwich.
You are eating a sandwich.
He/she/it is eating a sandwich.
We are eating a sandwich.
You are eating a sandwich.
They are eating a sandwich.