1.
Sequence of tenses (82 candidates) 
2.
Present => Preterite (Presente => Pretérito indefinido) (87 candidates) 

3.
Très, beaucoup (muy/mucho) (134 candidates) 
4.
Numbers (216 candidates)
5.
Imperative (68 candidates) 
6.
Gerund (100 candidates) 
7.
Present tense (291 candidates)
8.
Past participles (irregular) (186 candidates)
9.
Ser or Estar and right tense (291 candidates) 
10.
Por or Para (299 candidates) 
11.
Gender of nouns (315 candidates)
12.
Present perfect (373 candidates) 
13.
Diacritical accent (126 candidates) 
14.
Paronyms (100 candidates) 
15.
Prepositions (355 candidates)
16.
Present tense (irregular verbs) (462 candidates)
17.
Ser o Estar (262 candidates) 
18.
Past simple (irregular verbs) (801 candidates)
19.
Pronouns (54 candidates)
[Being reviewed]20.
Prepositions (598 candidates) 
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