The article contains the questionnaire used for field research on adverbials including a preposition in two Mexican localities: Aguascalientes and Xalapa. The questionnaire includes a brief presentation of the object of investigation, the method used, as well as 39 files with the questions asked on adverbials such as de lleno, de a gratis, en breve, a ciegas, a lo jijo, etc. The field study was carried out in December 2021. The informants were selected according to sociolinguistic parameters such as age, gender, and education. The number of informants was 20 in Aguascalientes and 22 in Xalapa. The study belongs to the project The Third Way. Prepositional Adverbials from Latin to Romance (dir. Martin Hummel), financed by the Austrian Science Fund (FWF), from 2018-2022. The Mexican study is one out of six comparative field studies realized for several Romance languages. The results of the field study will be published in 2024 ( Martin Hummel, Stefan Koch, David Porcel Bueno, Inka Wissner (eds.). In prep. Adverbials with preposition and adjective in Romance: six field studies in present-day varieties of French, Italian, Portuguese, Romanian and Spanish, Berlin / Boston: de Gruyter).

The questionnaire on French (Quebec) has been published as: Wissner, Inka. 2021. Les adverbes prépositionnels en français au Québec (Saguenay – Lac-St-Jean): questionnaire comportant 47 fiches. Free online publication, 80 pp. https://doi.org/10.5281/zenodo.4537699.