. Syntax In medieval Rock Hard Bull Castilian the perfect compounds of the verbs of movement were constructed with the auxiliary "to be": (1) The mugieres are arrived at Castiella. 'Women have come to Castilla'. Belonging or possession was expressed with the verb aver ( haber ): (2) Pedro has two fixed 'Pedro has two daughters' In the perfect preterite compound, the past participle used to agree in grammatical gender