In contrast, children with SLI who acquire languages with a rich inflection morphology will devote their limited resources to this area of grammar. As a result, the differences between children with ILS and generally developing children are smaller in a morphology-rich language than in a language like English. Despite these expected linguistic differences, children with SLI, even in morphology-rich languages, will have some problems with flexions if the flexions themselves reflect a complex combination of grammatical functions. The more the functions of children must be taken into account simultaneously, the greater the requirements of their limited processing capacity and the greater the number of encounters with the necessary flexions before becoming an integral part of children`s grammar. Past forms also appear towards the end of the second year, and first they are usually used to express completed acts. A second remarkable detail, which appears in Tables 1 and and22, is the relatively large number of allomorphs. Most of the variation in the form of flexion is a function of the vocal harmony rules of Hungarian. These rules appear to be acquired by Hungarian-speaking children at a fairly young age (e.g.B. MacWhinney, 1985), although they make the relationship between correspondence curves in the present and the past less clear.
Other allomorphs are a phonological conditioning product. The most important of these is the current undetermined second person, Singular Allomorph, -sz, whose form is determined by the particular consonance that appears at the end of the verb stem. .