In English as in many other languages, some of the same words are used for deontic modality as for epistemic modality, and the meaning is distinguished from context : " He must be there by now " ( epistemic ) versus " He must be there tomorrow at noon " ( deontic ).
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For instance, de Haan ( 1999, 2001, 2005 ) states that evidentiality " asserts " evidence while epistemic modality " evaluates " evidence and that evidentiality is more akin to a deictic category marking the relationship between speakers and events / actions ( like the way demonstratives mark the relationship between speakers and objects, see also Joseph 2003 ).
