Idiomatic knowledge, the competence of speakers to speak consists of nine aspects perfectly to be separated through abstraction in accordance with two sets of criteria to be found in the activity of speaking: three levels (universal, historical or particular and individual) and three points of view (activity, knowledge and product). Combining the three levels with the three points of view with the aspects referred to they are speaking in general, speaking a particular language and speaking individually; elocutive knowledge, idiomatic knowledge, and expressive knowledge; and the total manifestations of speaking, abstract language and text.My purpose now is to analyze the activity of speaking in order to know if idiomatic knowledge is structured or not thus interpreting the idiomatic knowledge underlying speaking.Hermeneutics is the science consisting in the interpretation of human facts in terms of the human life. Hermeneutics tries to justify what has already been made by humans.Key words: technique of speaking, external and internal equilibrium, the functional language, the architecture and the structure of a language, homogeneity and diversity.