1. Adjective endings

2. Cardinal numbers

3. Cases: nominative, accusative, dative & genitive

4. Comparative & superlative

5. Conjunctions

6. Future tense

7. Indirect questions

8. Infinitive clauses

9. Modal verbs

10. Nouns

  10.1 Gender of nouns

  10.2  Plural forms of nouns

  10.3 Weak nouns

11. Passive voice

12. Past perfect

13. Perfect tense

14. Personal pronouns 

15. Possessive articles

16. Prepositions

17. Reflexive pronouns & reflexive verbs 

18. Relative clauses

19. Simple past tense

20. Subjunctive (I)

21. Subjunctive (II)

22. Two-way prepositions 

23. Verbs and adjectives with prepositions