1.
Sequence of tenses (87 candidates) 
2.
Present => Preterite (Presente => Pretérito indefinido) (92 candidates) 

3.
Très, beaucoup (muy/mucho) (136 candidates) 
4.
Numbers (219 candidates)
5.
Imperative (75 candidates) 
6.
Gerund (104 candidates) 
7.
Present tense (298 candidates)
8.
Past participles (irregular) (187 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 (374 candidates) 
13.
Diacritical accent (126 candidates) 
14.
Paronyms (100 candidates) 
15.
Prepositions (356 candidates)
16.
Present tense (irregular verbs) (464 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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