There is a word that is much used in Corsican.

We saw it already (exclamation or interrogation adjective and pronoun)

And also :

1. Relative pronoun :  Used to add a relative subordinate clause, linked with a noun
   Issi scarpi novi chì mi stringhjenu
   (These new shoes that squeeze my feet)

2. Conjunction : Used to add a conjunctive subordinate clause, linked with a verb.

Pensu ch’è tù ci ai fattu riservà ste piazze
(I think that you made us book these tickets )