tests by hidalgo with the online test builder (688 tests)

541. Diacritical accent (1073 candidates)
542. Colours (1169 candidates)
543. Vocabulary (677 candidates)
544. Present subjunctive and spelling change verbs (410 candidates)
545. Present perfect (irregular verbs) (854 candidates)
546. Infinitive (2570 candidates)
547. Future (592 candidates)
548. Diphthong verbs (present tense) (1013 candidates)
549. Preterite or Imperfect tense (832 candidates)
550. Prepositions (398 candidates)
551. Past Participle (329 candidates)
552. Synonyms (341 candidates)
553. Plural of nouns (215 candidates)
554. Imperative (positive and negative forms) (239 candidates)
555. Ser or Estar (544 candidates)
556. Por/Para (282 candidates)
557. Present Indicative (regular verbs) (309 candidates)
558. Rooms, furniture and items of the house (1) (255 candidates)