3. Cases: nominative, accusative, dative & genitive
5. Conjunctions
Modal verbs (see "Verbs")
9. Nouns
9.1 Gender of nouns
9.3 Weak nouns
10. Passive voice
11. Past perfect
12. Perfect tense
15. Prepositions
16. Reflexive pronouns & reflexive verbs
17. Relative clauses
19. Subjunctive (I)
20. Subjunctive (II)
22. Verbs
22.1 Modal verbs