Pasos lesson p 55-56: 

Actividad 9c p55 

usando = gerund of usar

usar = to use

usando = using

Just a reminder that the gerund of -ar verbs is built removing the -ar and adding -ando.

The gerund of -er verbs is built removing the -er and adding -iendo. You add the same ending for -ir verbs.

“estimado/a” is used in formal letters/emails to mean “dear”

desde = from 

añadir = to add

añade = add! (imperative)

Make sure you add other questions at the end of your fax, like questions about the car park, the garden and the swimming pool)