“…In the present analysis, too, productivity is interpreted not as characterizing forms or operations per se , but rather children’s USE of linguistic forms as reflecting their knowledge of the ambient language (Ingram, 1989). Children’s initial use of grammatical elements is not necessarily productive, but often rote-learned (see, for example, MacWhinney, 1975, on Hungarian; Bowerman, 1985, on English; Bassano, 2000, on French; Kilani-Schoch & Dressler, 2002, on German; and also Armon-Lotem & Berman, 2003; Uziel-Karl, 2001, on Hebrew). That is, while inflections may surface early on in child language, they do not necessarily manifest morphologically motivated knowledge.…”