Document sans peer-review. La Linguistic Society of Papua New ne publie pas les actes de colloque sous forme d'ouvrage mais demande aux auteurs d'envoyer la présentation power point et un article qui contient la communication et ensuite les publie sur leur site. Il y a donc un comité scientifique pour la communication mais il n'y a pas de peer-review pour l'article. International audience Kibiri [prm] is an underresearched isolate language known by 32 people living at Kikori and other villages around the Kikori river, at Kikori district in the Gulf province of Papua New Guinea. The actual number of tribal members is probably 300. The tribal members as well as L1 speakers live scattered throughout Kikori and the surrounding villages and with members of non-Kibiri tribes: Kerewo, Porome, Kope, etc. The only remaining speakers are people above 40 years old and they mostly communicate in Hiri Motu (henceforth HM) among them and with family members. Others fully master Kerewo [kxz]. This paper presents ungoing research and is the very first introduction to Kibiri’s sociolinguistic situation with an accent on how lack of language use and linguistic ideologies affect language documentation and description and the researcher’s work. A brief description of verbal number in Kibiri is also outlined to exemplify how complexity can be found in moribund languages in the world.The data and information presented in this paper were obtained through direct participant observation, interviews, and fieldwork methods during my field trip in the area from January 2022 to late November 2022. I have obtained about 70 hours of first-hand recordings on Kibiri which are currently being processed. The results presented in this paper are therefore preliminary and might change as my research and analysis on Kibiri continues. This paper is part of the proceedings of the LSPNG 2022 Annual conference, held at the National Research Institute in Port Moresby, on September 21st and 22nd, 2022.