Italian Clitic Patterns in Pregroup Grammar: State of the Art

Pregroup calculus and pregroup grammars are introduced by Lambek as an algebraic tool for the grammatical analysis of natural languages and the computation of strings of words and sentences. Some interesting aspects of natural languages have been profitably handled by means of pregroups. In the present paper we focus on a chosen aspect of Italian grammar - clitic pronouns - and show how to tackle it by means of different types of pregroup grammars. We start with classical pregroup grammars, proceed to product pregroup grammars and then introduce tupled pregroup grammars. Advantages and disadvantages of the different approaches are discussed and compared.