The semantic field of the English modal auxiliary can interacting with the grammatical aspect of the main verb in Contemporary American English

Existing research recognizes the important role aspect plays in the interpretation of modal readings. This paper presents an empirical approach to this area of study, based on corpus material. The investigation described here is part of the author’s large-scale corpus research into modality-aspect interfaces. It traces patterns of interaction as exhibited in the Kratzerian semantic field of the English modal auxiliary can and the grammatical aspects which follow it within matrix predicates. The analyzed language samples were extracted from The Corpus of Contemporary American English (COCA). The study demonstrates patterns of interaction between the modal readings of can and the grammatical aspectual forms of the main verb. Moreover, it also shows that when modality concerns past events expressed through the perfect aspect, it tends to take epistemic conversational backgrounds. In addition to this, this research has also revealed the interaction of modality with subjectival negation.