All tests by jandark with the online test builder (7 tests)
1. Pretérito perfecto compuesto (3458 candidates) 
2. Imperfect or Present tense (2526 candidates)
3. Ser or Estar (1554 candidates)
4. También / tampoco (4789 candidates)
5. Comparison words: más ,menos ,mayor ,menor ,mejor, peor (12010 candidates) 
6. Since, for, while, during, ago (3333 candidates) 
7. For, since, while, during (8048 candidates)
1.
Pretérito perfecto compuesto (3458 candidates) 2.
Imperfect or Present tense (2526 candidates) 3.
Ser or Estar (1554 candidates) 4.
También / tampoco (4789 candidates) 5.
Comparison words: más ,menos ,mayor ,menor ,mejor, peor (12010 candidates) 6.
Since, for, while, during, ago (3333 candidates) 7.
For, since, while, during (8048 candidates) 