tests by paka98 with the online test builder (12 tests)
Ranked by: number of candidates
1. Agreement of subject and verb (31963 candidates)
2. Active and Passive Voice (26897 candidates)
3. Conditional (23732 candidates)
4. Formation of adjectives (10266 candidates)
5. Gerunds (9950 candidates)
6. Opposites by adding prefixes (6019 candidates)
7. Formation of verbs (5091 candidates)
8. Formation of nouns (4025 candidates)
9. Weather and the Environment (3186 candidates)
10. Comparative and superlative (3134 candidates)
11. Irregular plurals (2227 candidates)
12. Question Tags (1628 candidates)