tests by vergnuegen with the online test builder (62 tests)
Ranked by: number of candidates
1. Subjunctive II (wäre / würde) (20577 candidates)
2. Comparative of superiority (8546 candidates)
3. Conditional (7067 candidates)
4. Subjunctive II (5812 candidates)
5. Comparative (5074 candidates)
6. Declension : Direct/indirect object pronouns (4174 candidates)
7. 'derselbe' / 'der gleiche' (4130 candidates)
8. Accusative and dative (4086 candidates)
9. Passive voice (3993 candidates)
10. Comparative of superiority (3868 candidates)
11. Passive voice (3620 candidates)
12. Future II tense (3057 candidates)
13. Dictation : Christmas (2951 candidates)
14. Passive voice (2702 candidates)
15. Prepositions : nach, auf, von, aus... (2657 candidates)
16. Comparing (2439 candidates)
17. Accusative or dative (2422 candidates)
18. Personal pronouns (2329 candidates)
19. Answers (2275 candidates)
20. Personal pronouns (2055 candidates)