The goal of this article is to resume the results of language contacts that can be perceived in the concessive and concessive conditional clauses in modern Judeo-Spanish texts, published between 1880 and 1930. First, we see a growth and a diversification of the concessive conjunctions due to the contacts with Western European languages, particularly Italian. Second, a linguistic innovation in the concessive conditional clauses reflects the fundamental changes in the language contacts of Judeo-Spanish between the 18th century and the modern period, as well as the modernization of Judeo-Spanish that characterizes its transformation during the last decades of the 19th and the beginning of the 20th centuries.