Variable effects of morphology and frequency on inflection patterns in French preschoolers

We studied the emergence of productive verb inflection in pre-school native speakers of Quebec French using a verb elicitation task. We verified whether verb conjugation group (regular vs. irregular morphology) and frequency affect ability to produce correctly inflected pass compos forms. Special attention was paid to regularization into regular (default) and sub-regular conjugations, and to irregularization patterns. Results indicate that French-speaking children are able to productively use inflectional rules at very young ages and are sensitive to verb frequency and morphological patterns, both default and sub-regular, as evidenced by differential production patterns for regular and irregular verbs.