tests by hidalgo with the online test builder (848 tests)

521. Enclise (l') (40170 candidates)
522. Likes (1838 candidates)
523. Pretérito indefinido / Pretérito imperfecto (21424 candidates)
524. Haber/tener (present) (3882 candidates)
525. Pretérito indefinido: irregular verbs (8414 candidates)
526. Plural (4225 candidates)
527. Tanto (8932 candidates)
528. From another tense to present tense (1804 candidates)
529. Gérondif ou participe passé (10252 candidates)
530. #el que#lo que (4917 candidates)
531. Diminutive words (4374 candidates)
532. Simple past - irregular verbs (71737 candidates)
533. Personal pronouns (1331 candidates)
534. Muy/Mucho (29613 candidates)
535. Pretérito indefinido / Conditional present (5335 candidates)
536. Synonyms (verbs) (12495 candidates)
537. Esta - está - ésta (20637 candidates)
538. Enclisis (9956 candidates)
539. Present - Irregular verbs (2645 candidates)
540. Present - Regular verbs (8697 candidates)