The feature adjectival verb refers to the use of what would be adjectival forms in standard English as verbs […] eg 'Johnny ready' – ‘Johnny is ready’. Cases such as these have tended to be treated in the literature as instances of copula deletion […] but a more appropriate analysis would seem to be one which recognizes them as a subcategory of stative verb […].
- Romaine (1988), Pag. 199