tests by mariebru with the online test builder (1938 tests)

581. Adjectives (887 candidates)
582. Possessive adjectives (578 candidates)
583. Present perfect (8843 candidates)
584. Expressions (441 candidates)
585. Imperfect (3353 candidates)
586. Adverbs - Ooit / nooit ? (1429 candidates)
587. Past participle (962 candidates)
588. Passive voice (2759 candidates)
589. Plural (848 candidates)
590. Comparing (1572 candidates)
591. Indefinitive adjectives and pronouns (322 candidates)
592. Prepositions (1066 candidates)
593. Subordinate clauses (329 candidates)
594. Infinitive / -(te)+ verb (1287 candidates)
595. Present (1536 candidates)
596. DIE or DAT? (1786 candidates)
597. Prepositions (265 candidates)
598. Imperfect (810 candidates)
599. Inverting words (3243 candidates)
600. Negation - geen / niet (1856 candidates)