Verb conjugation of "frustrar" in Spanish

All people held signs with names on them and on one plate I saw name, of course misspelled. I went with the person to his oldtimer car. We drove to his cottage and I was surprised about the nice reception.
On Friday we are flying to Switzerland and then on Monday we will continue to Boston, Maine, Vermont and New Hampshire. I am very excited. Maybe this is going to be a great experience again.
The city was incredibly vivid and we were impressed by its size. We walked a lot through all the different neighborhoods, starting with Recoleta, an upper class neighborhood with its famous cemetery.