tests by tati71 with the online test builder (174 tests)
Ranked by: number of candidates
1. Declension : Epithet adjectives with definite articles (34763 candidates)
2. Imperative (28707 candidates)
3. Infinitive (ohne zu, um zu, anstatt zu) (27039 candidates)
4. Aus, von - choose (20296 candidates)
5. Declension : Epithet adjectives (20119 candidates)
6. Passive voice (18599 candidates)
7. Questions (wie, wo, was...) (18510 candidates)
8. Adjectives (17309 candidates)
9. In / nach (16431 candidates)
10. Trotz / wegen (15445 candidates)
11. Job interview (15195 candidates)
12. Simple past/Imperfekt: Modals (14828 candidates)
13. Conjunctions : dass / weil (14542 candidates)
14. Pluperfect (11981 candidates)
15. Reflexive pronouns (10868 candidates)
16. Present : Dürfen/Können (10287 candidates)
17. Comparisons (10225 candidates)
18. Prepositions : bei / zu (10214 candidates)
19. Conjunctions (9031 candidates)
20. Personal pronouns (8932 candidates)