“…For example, morphological markers and structure words (e.g., auxiliaries, determiners, pronouns) have not traditionally been included on AAC devices, which can negatively affect language and literacy growth for beginning writers in English when their devices contain mostly nouns (Lund & Light, 2007;Sutton, Gallagher, Morford, & Shahnaz, 2000). For English, high frequency vocabulary and structure words have been compiled (Clendon & Erickson, 2008) but vocabulary development can differ by word type across languages. In English, for example, nouns are emphasized and are the most frequent type of word in early development, whereas verbs are likely to occur early in Spanish-speaking children (Bornstein et al, 2004).…”