This thesis studies the equivalents of the words already, still, not yet and no longer in the Romance languages. These concepts constitute an onomasiological domain located in the periphery of aspect that have come to be known as phasal polarity expressions. Specifically, this thesis studies the phasal polarity adverbials in 45 Romance varieties belonging to 34 distinct Romance languages. The data were collected using a variety of written sources and ellicitated material, and were analysed according to three of Kramer's parameters: expressibility, coverage and wordhood. The results are generally in line with previous literature but diverging phenomena have also been observed. The findings of this study add to the growing body of literature on the topic and lay the foundation for more thorough descriptions of phasal polarity in the Romance languages.