This document discusses several grammatical features of Germanic languages, including: 1. The morphological system of substantives consists of a root, stem-building suffix, and case inflection. Vocalic, -n-, and other consonant stems are discussed. 2. Adjective declension differs from substantives by having both strong and weak forms, with weak forms used for definiteness. Strong adjective forms combine properties of substantives and pronouns. 3. Pronouns in Germanic languages fall into personal, possessive, demonstrative, interrogative, indefinite, definite, negative, and relative classes, with some formed suppletively like in ancient IE languages.