Used to + inf / would + inf / be - get used to + gerund or noun.

Used to-be-used-to-get-used-to de Cristian Correa Berrío

Here you have some grammar notes in Spanish to download:  grammar notes

Do the following exercises if you still have problems with it:   
Used to - Be/Get used to

PRONOUNS REVISION

Watch the following video and have a look at the link below.



Have a lok at the following link:
http://www.ego4u.com/en/cram-up/grammar/pronouns
There are some notes about pronouns and some exercises to practice them.