Verbs: Gerund

A cosa stai pensando?
In English, verbs have an ‑ing form, for example finding, going, etc. In a similar way, Italian verbs have an ‑ndo form, like trovando or andando.
Most ‑are verbs use the ending ‑ando, while ‑ere and ‑ire verbs use ‑endo.
verb‑ndo form
pensare
to think
pensando
thinking
sapere
to know
sapendo
knowing
capire
to understand
capendo
understanding
Sto pensando di andare all'estero.
I am thinking about going abroad.
Cosa sta succedendo?
In English, we can use to be plus an ‑ing verb to talk about what you're doing right now.

In Italian, you can do the same thing, but you'll need to use
stare plus an ‑ndo verb, as in Lui sta lavorando or Noi stiamo guardando la partita.
Noi stiamo andando al negozio.
We are going to the store.
Io sto parlando con il mio studente.
I am speaking with my student.
Cosa stai facendo?
Some verbs have special ‑ndo forms. But don't worry, there are just a few! Here they are:
verb‑ndo form
farefacendo
diredicendo
berebevendo
Cosa stai facendo nell'angolo?
What are you doing in the corner?
Non capisco cosa stai dicendo.
I do not understand what you are saying.