In the last 25 years foreign language teaching has been able to increase its efficiency through an orientation towards authentic language materials, pragmatic language functions and interactive learning methods. However, so far foreign language teaching has lacked a sufficiently strong theoretical framework to support the teaching of language in all its aspects. Arguably, such a linguistic theory has to be usage-based and cognition-oriented. Since cognitive linguistics - and especially cognitive grammar - is concerned with conceptual issues against the larger background of human cognition and because it is based on actual language use, it becomes a powerful tool for dealing adequately with the main issues of a pedagogical grammar. A pedagogical grammar aims at providing all the essential linguistic patterns considered relevant by theoretical and descriptive linguistics for the preparation of teaching materials and their exploitation in foreign language instruction.