Abstract 1. Some Basic Properties 1.1. Morphological Unity 1.2. Syntactic Unity 2. On the Grammatical Status of the Copula 2.1. Is it an Affix? 2.2. Is it an Independent Word? 2.3. Summary 3. Analysis 3.1. Motivation Tecto and Pheno Grammatical Structures 3.2. Liberation and Compaction 3.3. Explaining the Basic Properties 4. Conclusion References