1.
Sequence of tenses (98 candidates) 
2.
Present => Preterite (Presente => Pretérito indefinido) (102 candidates) 

3.
Très, beaucoup (muy/mucho) (141 candidates) 
4.
Numbers (227 candidates)
5.
Imperative (78 candidates) 
6.
Gerund (109 candidates) 
7.
Present tense (312 candidates)
8.
Past participles (irregular) (195 candidates)
9.
Ser or Estar and right tense (292 candidates) 
10.
Por or Para (303 candidates) 
11.
Gender of nouns (324 candidates)
12.
Present perfect (376 candidates) 
13.
Diacritical accent (127 candidates) 
14.
Paronyms (101 candidates) 
15.
Prepositions (362 candidates)
16.
Present tense (irregular verbs) (472 candidates)
17.
Ser o Estar (263 candidates) 
18.
Past simple (irregular verbs) (810 candidates)
19.
Pronouns (54 candidates)
[Being reviewed]20.
Prepositions (600 candidates) 
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