“…Verbs are hard to learn, even for older children (Forbes & Farrar, 1995), and even in languages such as Japanese where verbs can appear in isolation and in salient sentence-final position (Bornstein et al, 2004;Imai, Haryu, & Okada, 2002;Imai et al, 2006). However, despite the difficulty in learning verbs, words for actions or events appear among children's earliest receptive and production vocabularies (Bates, Bretherton, & Snyder, 1988;Bloom, 1993;Bloom, Tinker, & Margulis, 1993;Bowerman, 1974;Gopnik & Meltzoff, 1986;Hampson, 1989;Huttenlocher, Smiley, & Charney, 1983;Lieven, Pine, & Barnes, 1992;McCune-Nicolich, 1981;Nelson, 1973;Nelson, Hampson, & Shaw, 1993;Pine, 1992;Tomasello, 1992;Tomasello & Todd, 1983).…”