Verb conjugation of "infiltrar" 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.
My experience at Vocabulix has been great. I really think that this site has helped me a lot in improving my Spanish language skills. I believe that I could learn here several other languages.
I connected to a group of people and we played some volleyball, had some drinks and they told me a little about the place and the country in general. I returned to the hostel and took a cold shower.