I am Italian and I can speak Italian fluently. I can write every document in my mother tongue language.
In the last four years my main language was English. For researching purpose my papers were written in academic English. My lectures are in English too.
I am able to speak and read in Danish at intermediate level. I can read emails, official document and easy newspaper articles.
I studied German in Italy for eight years and I lived in Tuebingen, Germany, for one year. My German level was higher than intermediate but it needs one month of good study to return at professional level.
Since my wife is Chinese, I point to improve this language in the next years.