The University of Pennsylvania Working Papers in Linguistics (PWPL) is an occasional series published by the Penn Graduate Linguistics Society. The series has included volumes of previously unpublished work, or work in progress, by linguists with an ongoing affiliation with the Department, as well as volumes of papers from NWAV and the Penn Linguistics Conference. This volume contains selected papers accepted into the 45th Penn Linguistics Conference. Given the COVID-19 pandemic, PLC 45 took place virtually and all authors of oral presentations were invited to contribute a ten page paper to this volume. We thank our authors for their contribution and their patience and understanding in this editing process. We also thank Pik Yu May Chan, June Choe, Gwen Hildebrandt, Aini Li, Daoxin Li, Karen Li, Lefteris Paparounas, and Christine Soh for their help in editing. Since Vol. 14.2, PWPL has been an internet-only publication. As of September 2014, the entire back catalog has been digitized and made available on ScholarlyCommons@Penn. Please continue citing PWPL papers or issues as you would a print journal article, though you may also provide the URL of the manuscript. An example is below: Lee, Soo-Hwan, and Yining Nie. 2022. In University of Pennsylvania Working Papers in Linguistics 28.1, ed. Johanna Benz and Yiran Chen, 86-95. Available at: http://repository.upenn.edu/pwpl/vol28/iss1/11. Publication in the University of Pennsylvania Working Papers in Linguistics (PWPL) does not preclude submission of papers elsewhere; copyright is retained by the author(s) of individual papers. The PWPL editors can be contacted at: U. Penn Working Papers in Linguistics, Department of Linguistics, 3401-C Walnut Street, Suite 300, C Wing, Philadelphia, PA 19104-6228 and working-papers@ling.upenn.edu. Johanna Benz and Yiran Chen, Issue Editors