tests by tati71 with the online test builder (174 tests)
Ranked by: number of candidates
1. Declension : Epithet adjectives with definite articles (34638 candidates)
2. Imperative (28618 candidates)
3. Infinitive (ohne zu, um zu, anstatt zu) (26882 candidates)
4. Aus, von - choose (20196 candidates)
5. Declension : Epithet adjectives (20047 candidates)
6. Passive voice (18598 candidates)
7. Questions (wie, wo, was...) (18379 candidates)
8. Adjectives (17234 candidates)
9. In / nach (16361 candidates)
10. Trotz / wegen (15251 candidates)
11. Job interview (15189 candidates)
12. Simple past/Imperfekt: Modals (14735 candidates)
13. Conjunctions : dass / weil (14529 candidates)
14. Pluperfect (11915 candidates)
15. Reflexive pronouns (10791 candidates)
16. Present : Dürfen/Können (10228 candidates)
17. Comparisons (10204 candidates)
18. Prepositions : bei / zu (10163 candidates)
19. Conjunctions (8950 candidates)
20. Personal pronouns (8916 candidates)