21.
Present => Preterite (Presente => Pretérito indefinido) (248 candidates) 

22.
Très, beaucoup (muy/mucho) (250 candidates) 
23.
Numbers (374 candidates)
24.
Imperative (143 candidates) 
25.
Gerund (192 candidates) 
26.
Present tense (518 candidates)
27.
Past participles (irregular) (248 candidates)
28.
Ser or Estar and right tense (413 candidates) 
29.
Por or Para (423 candidates) 
30.
Gender of nouns (418 candidates)
31.
Present perfect (579 candidates) 
32.
Diacritical accent (154 candidates) 
33.
Paronyms (124 candidates) 
34.
Prepositions (404 candidates)
35.
Present tense (irregular verbs) (519 candidates)
36.
Ser o Estar (311 candidates) 
37.
Past simple (irregular verbs) (922 candidates)
38.
Pronouns (122 candidates)
[Being reviewed]39.
Prepositions (667 candidates) 
40.
Temporal clauses (indicative or subjunctive) ? (266 candidates) 
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