Brocardo, Maria Teresa. “’Ser Teudo De responder’ or ’ter De responder’: On the Emergence of Deontic Uses of ’ter De (que)’ + INF in Portuguese”. Journal of the Portuguese Linguistics Association, no. 7 (November 30, 2020): 55–68. Accessed November 14, 2026. https://ojs.apl.pt/index.php/rapl/article/view/89.