Abstract
"This study focuses on two locutions, ma foi and ma parole, which are often presented as supporting an assertion and conveying the speaker’s commitment. However, they are very rarely commutable. In this work, we attempt to identify the criteria that guide and limit their role in discourse, firstly through a distributional analysis of the possibilities of the two locutions in autonomous use, and then through a semantic-pragmatic approach to the constraints gov- erning their appearance. Finally, we ask whether it is possible to classify them as interjections or as discourse markers."