> When I say "I'm eating a sandwich", the primary verb is "to eat". I'm telling you my current state as a side effect only. I'm not sure I understand the uniqu

> When I say "I'm eating a sandwich", the primary verb is "to eat". I'm telling you my current state as a side effect only. I'm not sure I understand the uniqueness. In Spanish this would be, in the context of a conversation: "Qué estás haciendo?" "Estoy comiendo un sandwich" Note this is idiomatic and the most common way of saying this, I'm not forcing it. "Comiendo" (from "comer", "to eat", is the -ing form in Spanish, and it's widely used).