Complex sentence: The Creole is still expanding, and is understood by the vast majority of the population, and with growing interference from Standard Portuguese throw decreolization and forming a continuum of varieties with it, the most distant are basilects and the closer ones, acrolects.
Split into simpler sentences: The Creole is still expanding, and it is understood by the vast majority of the population. However, decreolization processes are occuring, due to undergoing interference from Standard Portuguese and forms a continuum of varieties with it, the most distant are basilects and the closer ones, acrolects.