Verb conjugation of "anticipar" in Spanish

As I have already mentioned in my last email, it is a breakthrough, I have never been so successful. I have visited several Spanish schools and would like to discuss that by telephone with you.
Productivity declines when it is too hot outside. Oscar therefore closed his laptop and production unit and headed towards the lake where his pretty girlfriend was waiting for him. Once he arrived he bought a ice cream as a surprise.
And how long will you be there? When will you come back to Venezuela? Now, I'm learning German grammar and I am doing my homework. Super boring, and it took me too much time in total.