All tests by jandark with the online test builder (7 tests)
1. Pretérito perfecto compuesto (3336 candidates) 
2. Imperfect or Present tense (2400 candidates)
3. Ser or Estar (1554 candidates)
4. También / tampoco (4639 candidates)
5. Comparison words: más ,menos ,mayor ,menor ,mejor, peor (11556 candidates) 
6. Since, for, while, during, ago (3303 candidates) 
7. For, since, while, during (7981 candidates)
1.
Pretérito perfecto compuesto (3336 candidates) 2.
Imperfect or Present tense (2400 candidates) 3.
Ser or Estar (1554 candidates) 4.
También / tampoco (4639 candidates) 5.
Comparison words: más ,menos ,mayor ,menor ,mejor, peor (11556 candidates) 6.
Since, for, while, during, ago (3303 candidates) 7.
For, since, while, during (7981 candidates) 