tests by valdyeuse with the online test builder (115 tests)
Ranked by: number of candidates
1. Future with shall and will (87429 candidates)
2. About To be and To have (61273 candidates)
3. Personal pronouns (38481 candidates)
4. Possessive case (28443 candidates)
5. Who and Which (28140 candidates)
6. Past perfect simple (24195 candidates)
7. How many - How much (23490 candidates)
8. Comparison (22030 candidates)
9. Present simple or continuous (20453 candidates)
10. Exclamations with How or What (17714 candidates)
11. Any - some - no (16435 candidates)
12. Too many or too much (12588 candidates)
13. Superlatives (12484 candidates)
14. Another - other - the others (12042 candidates)
15. If or When (11887 candidates)
16. Conditional present (11829 candidates)
17. Relative pronouns Who or Which (11487 candidates)
18. Past simple (11007 candidates)
19. Prefixes Over and Under (10604 candidates)
20. How long - For - Since (10250 candidates)