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

641. Adjectives (897 candidates)
642. Diminutive words (675 candidates)
643. Plural (1003 candidates)
644. Sentences (311 candidates)
645. Subordinate clauses (652 candidates)
646. Past participle (9306 candidates)
647. Pronominal verbs (924 candidates)
648. Demonstrative adjectives (778 candidates)
649. Ergens / nergens (419 candidates)
650. Indefinite adjectives and pronouns (161 candidates)
651. Ooit / nooit (639 candidates)
652. Numbers (1014 candidates)
653. Possessive adjectives (425 candidates)
654. Adjectives - comparisons (1060 candidates)
655. Dative - ter / ten (117 candidates)
656. Inverting words (996 candidates)
657. Plural (1052 candidates)
658. Prepositions (159 candidates)
659. Imperfect - irregular verbs (1061 candidates)
660. Imperfect (725 candidates)