Verb conjugation of "dubitare" in Italian

The third and forth largest economies in the world are growing due to the fact that the countries were investing large resources in education, including foreign language acquisition. English, in this case, was the dominant language.
Sorry if I did not write back, I was in Napoli during the holidays, then back at work, once again I have so much to do at the weekend, but I will do my best. Greetings from Italy. Marco.
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.