tests by tati71 with the online test builder (174 tests)
Ranked by: number of candidates
1. Declension : Epithet adjectives with definite articles (34560 candidates)
2. Imperative (28576 candidates)
3. Infinitive (ohne zu, um zu, anstatt zu) (26826 candidates)
4. Aus, von - choose (20171 candidates)
5. Declension : Epithet adjectives (19983 candidates)
6. Passive voice (18597 candidates)
7. Questions (wie, wo, was...) (18367 candidates)
8. Adjectives (17212 candidates)
9. In / nach (16343 candidates)
10. Trotz / wegen (15187 candidates)
11. Job interview (15183 candidates)
12. Simple past/Imperfekt: Modals (14656 candidates)
13. Conjunctions : dass / weil (14513 candidates)
14. Pluperfect (11854 candidates)
15. Reflexive pronouns (10767 candidates)
16. Present : Dürfen/Können (10213 candidates)
17. Comparisons (10195 candidates)
18. Prepositions : bei / zu (10143 candidates)
19. Conjunctions (8912 candidates)
20. Personal pronouns (8909 candidates)