Schubert Verlag does not offer a free full PDF of A-Grammatik . Many search results leading to "free PDF" are either:

Some essential topics to focus on at the A1 level include:

The content of an A1 grammar guide is characterized by the absolute essentials. It typically introduces the present tense of verbs, the articles (definite and indefinite), basic pronouns, and simple sentence structures (Subject-Verb-Object). For a learner, this stage is about survival—learning how to say "I am," "I have," and "I go." The A2 section of the PDF builds upon this by expanding the learner’s temporal range. It introduces the past tenses (such as the Preterite or Perfect), the future tense, and modal verbs (can, must, should). It also delves into slightly more complex structures like comparative adjectives and prepositions of place. By compartmentalizing these rules, the PDF provides a clear roadmap from isolation to basic conversation.