tests by valdyeuse with the online test builder (115 tests)
Ranked by: number of candidates
1. Future with shall and will (87439 candidates)
2. About To be and To have (61337 candidates)
3. Personal pronouns (38550 candidates)
4. Possessive case (28447 candidates)
5. Who and Which (28177 candidates)
6. Past perfect simple (24197 candidates)
7. How many - How much (23490 candidates)
8. Comparison (22035 candidates)
9. Present simple or continuous (20456 candidates)
10. Exclamations with How or What (17730 candidates)
11. Any - some - no (16439 candidates)
12. Too many or too much (12589 candidates)
13. Superlatives (12488 candidates)
14. Another - other - the others (12051 candidates)
15. If or When (11888 candidates)
16. Conditional present (11833 candidates)
17. Relative pronouns Who or Which (11492 candidates)
18. Past simple (11048 candidates)
19. Prefixes Over and Under (10608 candidates)
20. How long - For - Since (10251 candidates)