All tests by jandark with the online test builder (7 tests)
1. Pretérito perfecto compuesto (3339 candidates) 
2. Imperfect or Present tense (2400 candidates)
3. Ser or Estar (1554 candidates)
4. También / tampoco (4643 candidates)
5. Comparison words: más ,menos ,mayor ,menor ,mejor, peor (11556 candidates) 
6. Since, for, while, during, ago (3304 candidates) 
7. For, since, while, during (7983 candidates)
1.
Pretérito perfecto compuesto (3339 candidates) 2.
Imperfect or Present tense (2400 candidates) 3.
Ser or Estar (1554 candidates) 4.
También / tampoco (4643 candidates) 5.
Comparison words: más ,menos ,mayor ,menor ,mejor, peor (11556 candidates) 6.
Since, for, while, during, ago (3304 candidates) 7.
For, since, while, during (7983 candidates) 