Whether or not she is able, most likely she doesn't write her own speeches. Most people in her role--ministers, presidents, princes, you name it-- don't. The queen doesn't. Most CEO's and other honcho's don't. The reason is simple: time is these ultra-busy people's enemy. They simply don't have the time. Speech writing is a profession in itself, it takes a looooot of time & work to write a speech that is as informative and relevant and professional and appropriate as it is the opposite of sleep inducing. Just because it presents things in a clear and cohesive way, doesn't mean that crafting it is a simple and easy process. The opposite is true, hence most people on Maxima's level hire pro's or have pro's on their staff, to take care of this. She's most likely no exception.