“…An exception to this is Parodi (1998Parodi ( , 2000 who investigated the acquisition of subject-verb agreement and negation in longitudinal data from Romance learners of German, distinguishing between light verbs such as modals, auxiliaries, and possessive 'have', on the one hand, and lexical verbs, on the other. Her results indicated that agreement with lexical verbs showed a slow development towards the target system, while agreement with light verbs was sudden and correct.…”