Part of Speech
what kind of word is cantando? Is it a gerundio or infinitivo?
3 Answers
There's a great reference section here - you might find this helpful gerund.
The thing to remember that in English a gerund functions as a noun but in Spanish this isn't possible - instead the infinitive is used.
Eg. I like singing
Me gusta cantar.
But the gerund is used to form the present progressive tense:
Estoy cantando.
I am singing.
Cantar = the infinitive verb "to sing"
Cantando = the infinitive + ando (-ing in English) which means "singing."
An example with an -ir verb....
Viviendo
And an -er verb....
Comiendo
Gerundio