The microvariation of counterfactuality: on the interaction between X°- and XP raising in the CP phase

(2)a. main interrogatives (both yes/no and wh-questions); b. wh-exclamatives, expressing an emotionally salient attitude of the speaker, and yes/no exclamatives, expressing the speaker’s negative presupposition with respect to the propositional content, which is presented as unexpected; c. optatives expressing the speaker’s wish, in which the realization of a counterfactual propositional content is hoped for; d. if-clauses of conditional sentences, defining the condition under which the event expressed by the main clause can be realized; e. disjunctive structures in which two alternative possibilities are taken into account and evaluated as irrelevant to the realization of the event expressed by the main clause.