tests by valdyeuse with the online test builder (115 tests)
Ranked by: number of candidates
1. Future with shall and will (87382 candidates)
2. About To be and To have (61174 candidates)
3. Personal pronouns (38458 candidates)
4. Possessive case (28411 candidates)
5. Who and Which (28103 candidates)
6. Past perfect simple (24150 candidates)
7. How many - How much (23482 candidates)
8. Comparison (21983 candidates)
9. Present simple or continuous (20405 candidates)
10. Exclamations with How or What (17673 candidates)
11. Any - some - no (16403 candidates)
12. Too many or too much (12474 candidates)
13. Superlatives (12473 candidates)
14. Another - other - the others (12013 candidates)
15. If or When (11877 candidates)
16. Conditional present (11815 candidates)
17. Relative pronouns Who or Which (11476 candidates)
18. Past simple (10966 candidates)
19. Prefixes Over and Under (10559 candidates)
20. How long - For - Since (10238 candidates)