tests by hidalgo with the online test builder (966 tests)

521. Diminutive words (4370 candidates)
522. Simple past - irregular verbs (71360 candidates)
523. Personal pronouns (1330 candidates)
524. Muy/Mucho (29544 candidates)
525. Pretérito indefinido / Conditional present (5322 candidates)
526. Synonyms (verbs) (12490 candidates)
527. Esta - está - ésta (20448 candidates)
528. Enclisis (9953 candidates)
529. Present - Irregular verbs (2643 candidates)
530. Present - Regular verbs (8696 candidates)
531. Possessive adjectives (11749 candidates)
532. Imperative no (39871 candidates)
533. Possessive adjectives (18998 candidates)
534. Missing words (1300 candidates)
535. Personal pronouns (6795 candidates)
536. Articles (16363 candidates)
537. Missing words (1158 candidates)
538. Tenses (6875 candidates)
539. Imperative (5327 candidates)
540. Prepositions (2996 candidates)