Complex sentence: Since 2000, Cosby has been repeatedly accused of sexually assaulting women, in several cases after purportedly drugging them, from the 1960s to the 2010s.
Split into simpler sentences: Since 2000, Cosby has been repeatedly accused of sexually assaulting women, in several cases after purportedly drugging them. The allegations span from the 1960s to the 2010s.