tests by hidalgo with the online test builder (911 tests)

521. Enclise (l') (40210 candidates)
522. Likes (1838 candidates)
523. Pretérito indefinido / Pretérito imperfecto (21516 candidates)
524. Haber/tener (present) (3882 candidates)
525. Pretérito indefinido: irregular verbs (8417 candidates)
526. Plural (4225 candidates)
527. Tanto (8936 candidates)
528. From another tense to present tense (1804 candidates)
529. Gérondif ou participe passé (10258 candidates)
530. #el que#lo que (4918 candidates)
531. Diminutive words (4377 candidates)
532. Simple past - irregular verbs (71852 candidates)
533. Personal pronouns (1331 candidates)
534. Muy/Mucho (29619 candidates)
535. Pretérito indefinido / Conditional present (5359 candidates)
536. Synonyms (verbs) (12496 candidates)
537. Esta - está - ésta (20648 candidates)
538. Enclisis (9957 candidates)
539. Present - Irregular verbs (2647 candidates)
540. Present - Regular verbs (8697 candidates)