Disclaimer: I am new to this forum, so if my question isn't part of the proposal, my apologies.
Where could I learn English as a second language for free in the USA?
I am a graduate student who intends to apply for PhD in the US. However I never left my country (Brazil) and don't have fluency in English.
I am starting to think of it before applying for PhD, like spend six months in US just studying the language and after that starting with the PhD course.
Please, take into account I am thirty year old and have no savings to pay for any English course. Because of that any tips for learning or improving language skills for international students will be appreciated.
Edited: I would like to apply for California Universities.