All tests by jandark with the online test builder (7 tests)
1. Pretérito perfecto compuesto (3440 candidates) 
2. Imperfect or Present tense (2511 candidates)
3. Ser or Estar (1554 candidates)
4. También / tampoco (4764 candidates)
5. Comparison words: más ,menos ,mayor ,menor ,mejor, peor (11936 candidates) 
6. Since, for, while, during, ago (3323 candidates) 
7. For, since, while, during (8035 candidates)
1.
Pretérito perfecto compuesto (3440 candidates) 2.
Imperfect or Present tense (2511 candidates) 3.
Ser or Estar (1554 candidates) 4.
También / tampoco (4764 candidates) 5.
Comparison words: más ,menos ,mayor ,menor ,mejor, peor (11936 candidates) 6.
Since, for, while, during, ago (3323 candidates) 7.
For, since, while, during (8035 candidates) 