... the members of the word family of mentioned above and the set of word forms walk, walks, walked, walking. The different words related to the verb to tax are not felt as forms of the same word, ... presuppose knowledge of relations between words. It is the task of linguists to characterize the kind of know- ledge on which the awareness of the relation between the word forms walk, walks, walked, ... able to construct these different forms of the lexeme by applying the relevant rules. These rules for computing the different forms of lexemes are called rules of inflection. This example shows...