The aim of this paper is to analyze the mechanism of modalization in
conditional sentences during the evolution from Latin to Romance
languages. The analysis is realized with special attention to Spanish.
The modal modification of the transmitted contents is connected with
two factors (mood and tense): 1. The modal value of the Subjunctive
mood and 2. The temporal translocation of the Latin and Romance
tenses. Some Romance languages (e.g. Spanish, Portuguese and Italian)
represent mostly the first solution. Others languages (e.g. French,
Occitan and Catalan) select exclusively or principally the second possibility.
Nevertheless, the temporal translocation connected with the
change of the modal contents is possible in all Romance languages.