Bonjour (Hello) Victor, May I suggest to work on your french a little bit before to practice the pronunciation and few other things... I will be happy to help if you want ...

Hello Victor, The 3 official languages in Belgium are : Dutch , French and German Spanish is not really spoken but by a minority ,but in Belgium (it being multicultural ) many people do speak English as well. You might need to take a travel phrasal book with you in French or Dutch ( depends where you are going) to help you communicate basically with residents who don't speak English.

I was in Belgium before. French ! no problem, they speak English too.

Belgium has three official languages: Dutch, French, and German. A number of non-official, minority languages are spoken as well.