This article presents a series of three experiments investigating the processing of nested epistemic expressions, utterances containing two epistemic modals in one clause, such as "he 'certainly may' have forgotten." While some linguists claim that in a nested epistemic expression one modal is semantically embedded within the scope of…

The research demonstrated that there are differences in the processing of sentences containing anaphoric pronouns (e.g., "After Mark arrived, he used the phone.") and cataphoric pronouns (e.g., "After he arrived, Mark used the phone."). Reading time was measured on sentences containing 2 clauses; a pronoun appeared in 1 clause, and a proper name…