The basic grammar presents, in contrast to the grammatical supplements, the entire learning material of secondary level I in a systematic form across different year groups. The consistent structure of the paragraphs from example to rule, functional photos to illustrate grammar in an authentic context, signal-grammatical summaries, and prominent notes on peculiarities and learning aids make the basic grammar particularly clear and user-friendly. Self-assessment exercises at the beginning of each chapter give students the opportunity to check their knowledge and start a targeted review program. At the end of each chapter, there is a final test that helps evaluate the individual review program. The solutions are provided at the back of the grammar. 208 pages.