Auxiliary Constructions in the llati medieval Catalan Diplomas (10th-13th Century) and in The Usages of Barcelona (12th-15th Century)

The central object of the present research is the constituent order of head and modifier in auxiliary constructions, namely infinitive + finite auxiliary vs. finite auxiliary + infinitive and participle + finite auxiliary vs. finite auxiliary + participle. The texts under investigation are the llati medieval of Catalan diplomas of the 10th to 13th century, the Usatici Barchinonae of the 12th century and the Usatges de Barcelona of the 13th and 15th century. The issue is whether and to what extent the syntax of the documents edited in the llati medieval and the Usatici Barchinonae shows features of the developing Catalan syntax, in which the order head + modifier, i. e. finite auxiliary + infinitive and finite auxiliary + participle, becomes the preferred argument structure.