“…It has been argued recently that information structure notions, such as topic and focus, appear to play a crucial role in the position of S in free-order languages, with preverbal Ss usually analysed as topics or given information, and postverbal Ss as (presentational/informational) focus or new information (see, among others, Vallduví 1990, Fernández-Soriano 1993, Liceras et al 1994, Picallo 1998, Zubizarreta 1998, Belletti 2001, 2004b, Domínguez 2004, Lozano 2006 Empirical studies on Spanish native speakers' acceptability preferences show, however, that verb choice may determine whether the answer to questions like (19) may contain either a preverbal or a postverbal S. In particular, preverbal Ss are favoured for unergative Vs and postverbal Ss in unaccusative contexts (Hertel 2003, Lozano 2003, 2006) (see also Pinto 1997 for similar observations for Italian), as in (20). (20) a. i. Juan ha hablado.…”