Before starting on your motivation letter, it is best you find out as much as possible about the university that is offering the Master’s programme and about the programme itself. Usually, the universities’ website is pretty clear and informative about its requirements, expectations and about what qualifications and qualities they hope their candidates have.
Knowing a little bit about their requirements, about their main projects, activities, personal philosophy and interests will help you get an idea of what your letter should contain. Relating to the main activities and interests of the university will definitely help start a positive cooperation.
To get the perfect motivation letter, you will also need to have great English writing skills. If you need to improve your English speaking, why not try taking a good English language course abroad?