In Experiment 1, two variables were manipulated: the distributive pattern of the matrix verb, with three levels: predicates selecting only the subjunctive, predicates selecting only the indicative and predicates accepting both moods, and the tense of the matrix verb, with two levels: present and past time. Experiment 1 had 30 experimental items.
In Experiment 2, two variables were manipulated: the distributive pattern of the matrix verb as in the first experiment, and the grammatical aspect of matrix verb, with two levels: perfective and imperfective aspects. Experiment 2 had 42 experimental items.