Present Participle Formation
caer
cayendo
Estamos bailando.
We are dancing.
I am singing.
Yo estoy cantando.
ir
yendo
Estabas saliendo.
You were leaving.
You(pl) were studying.
Ustedes estaban estudiando.
decir
diciendo
Ella estaba leyendo.
She was reading.
We are building.
Estamos construyendo.
oír
oyendo
Tú estás diciendo.
You are saying.
Usted estaba trayendo.
You were bringing.
dormir
durmiendo
I was losing.
Yo estaba perdiendo.
They were serving.
Ellos/Ellas estaban sirviendo.