Neuter past tense forms in the first and second person singular like widziałom, widziałoś (as well as neuter indicative future tense forms like będę widziało, będziesz widziało and conditional forms like widziałobym, widziałobyś) occur in all main Slavic languages (so‑called macrolanguages) and in the so‑called Slavic literary microlanguages, but only as potential, rarely occurring albeit regularly derived forms. They were noted mainly in older grammar manuals. Some grammatical paradigms are incomplete because their authors listed only masculine forms. While they took the derivation of feminine forms for granted, it is not certain if they assumed that neuter forms in the first and second person singular existed. Engaging in researching the textual presence of these very rare linguistic forms in individual Slavic languages might be worthwhile. It appears that suitable computer software will allow searching existing textual corpora and provide relevant data on the linguistic forms discussed in this article.